diff --git a/Circuits/wdfSadouPushPushTriodeAmpTree.hpp b/Circuits/wdfSadouPushPushTriodeAmpTree.hpp
index 7e4688e..4cba96b 100644
--- a/Circuits/wdfSadouPushPushTriodeAmpTree.hpp
+++ b/Circuits/wdfSadouPushPushTriodeAmpTree.hpp
@@ -134,7 +134,7 @@ class wdfSadouPushPullTriodeAmpTree: public wdfTree {
         outputGain.name = "Output Gain";
         outputGain.ID = 1;
         outputGain.type = doubleParam;
-        outputGain.value = 1.0;
+        outputGain.value = 0.732;
         outputGain.units = " ";
         outputGain.lowLim = 0;
         outputGain.highLim = 4;
diff --git a/Libs/rt-wdf_lib/rt-wdf_nlSolvers.h b/Libs/rt-wdf_lib/rt-wdf_nlSolvers.h
index 75f7763..28bc49f 100644
--- a/Libs/rt-wdf_lib/rt-wdf_nlSolvers.h
+++ b/Libs/rt-wdf_lib/rt-wdf_nlSolvers.h
@@ -28,7 +28,7 @@
 
   iteration ITMAX, October-2019, Shun
   add NewtonSolver coefficient ALPHA adjustment, October-2019, Shun
- 
+  re-adjust NewtonSolver coefficient ALPHA     , January-2020, Shun
  ==============================================================================
  
  */
@@ -70,7 +70,7 @@
 
 /** NewtonSolver coefficient, alpha    */
 #ifdef  DEF_6K6
-#define ALPHA2 0.6  // 0.9NG  0.75NG  0.7NG 0.6OK 0.5OK 
+#define ALPHA2 0.5  // 0.9NG  0.75NG  0.7NG 0.6OK->NG 0.5OK 
 #endif
 
 //==============================================================================
diff --git a/wdfRenderer/Builds/VisualStudio2017/resources.rc b/wdfRenderer/Builds/VisualStudio2017/resources.rc
index 70b12b8..6fdf2d6 100644
--- a/wdfRenderer/Builds/VisualStudio2017/resources.rc
+++ b/wdfRenderer/Builds/VisualStudio2017/resources.rc
@@ -16,7 +16,7 @@ BEGIN
       VALUE "FileDescription",  "wdfRenderer\0"
       VALUE "FileVersion",  "1.0.0\0"
       VALUE "ProductName",  "wdfRenderer\0"
-      VALUE "ProductVersion",  "1.0.0\0"
+      VALUE "ProductVersion",  "1.0.1\0"
     END
   END
 
diff --git a/wdfRenderer/Source/MainComponent.cpp b/wdfRenderer/Source/MainComponent.cpp
index 6f1a321..09965aa 100644
--- a/wdfRenderer/Source/MainComponent.cpp
+++ b/wdfRenderer/Source/MainComponent.cpp
@@ -14,8 +14,8 @@
   add wdfSadouPushPushVCVSConnectionTriodeAmpTree2, October-2019, Shun
   delete Resampler fucntion, November-2019, Shun
   stereo input available,    November-2019, Shun
-  layout size change,        November-2019, Shun
-  
+  layout size to 600, 460,   November-2019, Shun
+  add a message              January-2020,  Shun
 ===============================================================================
 */
  
@@ -150,10 +150,13 @@ class MainContentComponent   :  public Component,
             wdfTree->initTree();
         }
         
-
+        // message
+        writeLogLine("This is a change of rt-wdf_renderer.");
+        writeLogLine("how to use: select a circuit(Tone Stack,CCTAx1,etc), Open File, and then Render");
+        
+        
         UpdateWdfTree(START_ID-1);
 
-
         /*
         writeLogLine("Created WDF tree");
         groupParams.setText(myWdfTree->getTreeIdentifier());
@@ -169,7 +172,7 @@ class MainContentComponent   :  public Component,
 
         // writeLogLine("Ready.");
 
-		writeLogLine("Order: 1st select wdr, next open file, and last render");
+		
 
     }
 
@@ -397,7 +400,7 @@ class MainContentComponent   :  public Component,
                 upBuf = new float[downBufSize]; //BS TODO
 				upBuf2 = new float[downBufSize]; //BS TODO
                
-                readerSource = newSource.release();
+                readerSource = newSource.release();  // leaves a dangling pointer
             }
         }
     }