diff --git a/WebWindowComplex/Models/Area.cs b/WebWindowComplex/Models/Area.cs
index 65f52d7..858f6de 100644
--- a/WebWindowComplex/Models/Area.cs
+++ b/WebWindowComplex/Models/Area.cs
@@ -239,7 +239,7 @@ namespace WebWindowComplex.Models
 
         #region Internal Methods
 
-        internal abstract JsonArea Serialize();
+        internal abstract JsonArea Serialize(bool hideHw);
 
         internal void SetAreaType(AreaTypes AreaType)
         {
diff --git a/WebWindowComplex/Models/Fill.cs b/WebWindowComplex/Models/Fill.cs
index 6126005..27cb798 100644
--- a/WebWindowComplex/Models/Fill.cs
+++ b/WebWindowComplex/Models/Fill.cs
@@ -84,13 +84,13 @@ namespace WebWindowComplex.Models
             return Fill;
         }
 
-        internal override JsonArea Serialize()
+        internal override JsonArea Serialize(bool hideHw)
         {
             if (nCounterGroup < GroupId)
                 Area.nCounterGroup = GroupId;
             JsonFill JsonFill = new JsonFill(FillType, GroupId);
             foreach (var Area in AreaList)
-                JsonFill.AreaList.Add(Area.Serialize());
+                JsonFill.AreaList.Add(Area.Serialize(hideHw));
             return JsonFill;
         }
 
diff --git a/WebWindowComplex/Models/Frame.cs b/WebWindowComplex/Models/Frame.cs
index 7434d54..7ec1e72 100644
--- a/WebWindowComplex/Models/Frame.cs
+++ b/WebWindowComplex/Models/Frame.cs
@@ -237,7 +237,7 @@ namespace WebWindowComplex.Models
             return NewFrame;
         }
 
-        internal override JsonArea Serialize()
+        internal override JsonArea Serialize(bool hideHw)
         {
             Area.nCounterGroup = 0;
             if (nCounterGroup < GroupId)
@@ -248,7 +248,7 @@ namespace WebWindowComplex.Models
             foreach (var Joint in JointList)
                 JsonFrame.JointList.Add(Joint.Serialize());
             foreach (var Area in AreaList)
-                JsonFrame.AreaList.Add(Area.Serialize());
+                JsonFrame.AreaList.Add(Area.Serialize(hideHw));
             return JsonFrame;
         }
 
diff --git a/WebWindowComplex/Models/Sash.cs b/WebWindowComplex/Models/Sash.cs
index 7fd3216..2c19ef9 100644
--- a/WebWindowComplex/Models/Sash.cs
+++ b/WebWindowComplex/Models/Sash.cs
@@ -655,11 +655,12 @@ namespace WebWindowComplex.Models
             m_HwdOptionList.Clear();
         }
 
-        internal override JsonArea Serialize()
+        internal override JsonArea Serialize(bool hideHw)
         {
             if (nCounterGroup < GroupId)
                 Area.nCounterGroup = GroupId;
-            JsonSash JsonSash = new JsonSash(m_bIsSashVertical, m_SashType, m_bSashBottomRail, m_nSashBottomRailQty, m_SelHardware.Id, GroupId);
+            string currHwId = hideHw ? CustomHwId : m_SelHardware.Id;
+            JsonSash JsonSash = new JsonSash(m_bIsSashVertical, m_SashType, m_bSashBottomRail, m_nSashBottomRailQty, currHwId, GroupId);
             foreach (var SashDimension in SashList)
                 JsonSash.SashList.Add(SashDimension.Serialize());
             foreach (var Joint in JointList)
@@ -667,7 +668,7 @@ namespace WebWindowComplex.Models
             foreach (var HwOption in HwOptionList)
                 JsonSash.HwOptionList.Add(HwOption.Serialize());
             foreach (var Area in AreaList)
-                JsonSash.AreaList.Add(Area.Serialize());
+                JsonSash.AreaList.Add(Area.Serialize(hideHw));
             return JsonSash;
         }
 
diff --git a/WebWindowComplex/Models/Split.cs b/WebWindowComplex/Models/Split.cs
index e845b3e..d0b49b6 100644
--- a/WebWindowComplex/Models/Split.cs
+++ b/WebWindowComplex/Models/Split.cs
@@ -369,7 +369,7 @@ namespace WebWindowComplex.Models
             return Split;
         }
 
-        internal override JsonArea Serialize()
+        internal override JsonArea Serialize(bool hideHw)
         {
             if (nCounterGroup < GroupId)
                 Area.nCounterGroup = GroupId;
@@ -382,7 +382,7 @@ namespace WebWindowComplex.Models
             foreach (var SplitHoriz in m_SplitHorizList)
                 JsonSplit.SplitHorizList.Add(SplitHoriz.Serialize());
             foreach (var Area in AreaList)
-                JsonSplit.AreaList.Add(Area.Serialize());
+                JsonSplit.AreaList.Add(Area.Serialize(hideHw));
             return JsonSplit;
         }
 
diff --git a/WebWindowComplex/Models/Splitted.cs b/WebWindowComplex/Models/Splitted.cs
index 012c38d..02baf89 100644
--- a/WebWindowComplex/Models/Splitted.cs
+++ b/WebWindowComplex/Models/Splitted.cs
@@ -42,13 +42,13 @@ namespace WebWindowComplex.Models
             return Splitted;
         }
 
-        internal override JsonArea Serialize()
+        internal override JsonArea Serialize(bool hideHw)
         {
             if (nCounterGroup < GroupId)
                 Area.nCounterGroup = GroupId;
             JsonSplitted JsonSplitted = new JsonSplitted(GroupId);
             foreach (var Area in AreaList)
-                JsonSplitted.AreaList.Add(Area.Serialize());
+                JsonSplitted.AreaList.Add(Area.Serialize(hideHw));
             return JsonSplitted;
         }
 
diff --git a/WebWindowComplex/Models/Window.cs b/WebWindowComplex/Models/Window.cs
index 4b37f20..cbe80e5 100644
--- a/WebWindowComplex/Models/Window.cs
+++ b/WebWindowComplex/Models/Window.cs
@@ -103,11 +103,16 @@ namespace WebWindowComplex.Models
             }
         }
 
-        internal JsonWindow Serialize()
+        /// <summary>
+        /// Serializzazione dell'oggetto windows
+        /// </summary>
+        /// <param name="hideHw">Hide hw x preview SVG veloci</param>
+        /// <returns></returns>
+        internal JsonWindow Serialize(bool hideHw = false)
         {
             JsonWindow JsonWindow = new JsonWindow(sProfilePath, sMaterial, sColorMaterial, sGlass);
             foreach (var Area in AreaList)
-                JsonWindow.AreaList.Add(Area.Serialize());
+                JsonWindow.AreaList.Add(Area.Serialize(hideHw));
             return JsonWindow;
         }
 
diff --git a/WebWindowComplex/TableComp.razor.cs b/WebWindowComplex/TableComp.razor.cs
index 36a0ea7..befd99b 100644
--- a/WebWindowComplex/TableComp.razor.cs
+++ b/WebWindowComplex/TableComp.razor.cs
@@ -452,15 +452,19 @@ namespace WebWindowComplex
         /// <summary>
         /// Richiesta update anteprima SVG
         /// </summary>
+        /// <param name="doForce">Forza richiesta anche con JWD invariato</param>
+        /// <param name="hideHw">Nasconde hw (def. false) poiché senza è piu rapido</param>
         /// <returns></returns>
-        protected async Task DoPreviewSvg(bool doForce = false)
+        protected async Task DoPreviewSvg(bool doForce = false, bool hideHw = false)
         {
             if (m_CurrWindow != null)
             {
 #if DEBUG
-                var CurrJwd = JsonConvert.SerializeObject(m_CurrWindow.Serialize(), Formatting.Indented);
+                var CurrJwd = JsonConvert.SerializeObject(m_CurrWindow.Serialize(false), Formatting.Indented);
+                var CalcJwd = JsonConvert.SerializeObject(m_CurrWindow.Serialize(hideHw), Formatting.Indented);
 #else
-                var CurrJwd = JsonConvert.SerializeObject(m_CurrWindow.Serialize());
+                var CurrJwd = JsonConvert.SerializeObject(m_CurrWindow.Serialize(false));
+                var CalcJwd = JsonConvert.SerializeObject(m_CurrWindow.Serialize(hideHw));
 #endif
                 // verifico variazione JWD
                 if (!prevJwd.Equals(CurrJwd) || doForce)
@@ -468,7 +472,7 @@ namespace WebWindowComplex
                     prevJwd = CurrJwd;
                     Dictionary<string, string> Args = new Dictionary<string, string>();
                     Args.Add("Mode", $"{(int)Enums.QuestionModes.PREVIEW}");
-                    Args.Add("Jwd", CurrJwd);
+                    Args.Add("Jwd", CalcJwd);
                     await EC_DoUpdate.InvokeAsync(Args);
                 }
             }
@@ -564,7 +568,7 @@ namespace WebWindowComplex
 
         protected override void OnAfterRender(bool firstRender)
         {
-            isLoading = false;
+            isRendered = true;
         }
 
         /// <summary>
@@ -579,6 +583,8 @@ namespace WebWindowComplex
             listWarnings = new Dictionary<string, string>();
         }
 
+        private bool firstDisplay = true;
+
         /// <summary>
         /// Gestione update post ricezione parametri da controllo chiamante
         /// </summary>
@@ -697,31 +703,37 @@ namespace WebWindowComplex
                     }
                     if (updRequested)
                     {
-                        // se mancasse xml opzioni hardware lo chiedo
-                        if (LiveData.DictOptionsXml.Count == 0)
-                        {
-                            List<int> reqList = SashList.Select(x => x.GroupId).ToList();
-                            //foreach (var item in SashList)
-                            //{
-                            //    string req = item.SelHardware.Id;
-                            //    if (string.IsNullOrEmpty(req))
-                            //    {
-                            //    }
-                            //}
-                            if (reqList.Count > 0)
-                            {
-                                await DoReqOptHardware(reqList);
-                            }
-                        }
+                       
                         // se mancasse dizionario forme chiamo quello
                         if (LiveData.DictShape.Count == 0)
                         {
+                            if (firstDisplay && isRendered)
+                            {
+                                firstDisplay = false;
+                                // preview SVG senza HW
+                                await DoPreviewSvg(true, true);
+                            }
                             List<int> reqList = SashList.Select(x => x.GroupId).ToList();
                             if (reqList.Count > 0)
                             {
                                 await DoReqShape(reqList);
                             }
                         }
+                        // se mancasse xml opzioni hardware lo chiedo
+                        else if (LiveData.DictOptionsXml.Count == 0)
+                        {
+                            if (firstDisplay && isRendered)
+                            {
+                                firstDisplay = false;
+                                // preview SVG senza HW
+                                await DoPreviewSvg(true, true);
+                            }
+                            List<int> reqList = SashList.Select(x => x.GroupId).ToList();
+                            if (reqList.Count > 0)
+                            {
+                                await DoReqOptHardware(reqList);
+                            }
+                        }
                         else
                         {
                             // chiedo SVG
@@ -846,6 +858,7 @@ namespace WebWindowComplex
         /// Booleana fase loading
         /// </summary>
         private bool isLoading = false;
+        private bool isRendered = false;
 
         /// <summary>
         /// ELenco errori di coerenza/link dati (vanno risolti per disegnare/procedere)
diff --git a/WebWindowComplex/WebWindowComplex.csproj b/WebWindowComplex/WebWindowComplex.csproj
index e1e04cf..c722e95 100644
--- a/WebWindowComplex/WebWindowComplex.csproj
+++ b/WebWindowComplex/WebWindowComplex.csproj
@@ -168,6 +168,22 @@
 
 
 
+
+
+
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+
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+
+
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+
+
 
 
 
diff --git a/WebWindowConfigurator/WebWindowConfigurator.csproj b/WebWindowConfigurator/WebWindowConfigurator.csproj
index 3568d74..0f07a09 100644
--- a/WebWindowConfigurator/WebWindowConfigurator.csproj
+++ b/WebWindowConfigurator/WebWindowConfigurator.csproj
@@ -240,6 +240,25 @@
 
 
 
+
+
+
+
+
+
+
+
+
+
+
+
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+
+