diff --git a/inputs/cellsolver.parset b/inputs/cellsolver.parset
index f096251875be01605c9ca6628a47baa316c7eef5..71dc1e54751e09a138e9d63845203c23ac82f321 100644
--- a/inputs/cellsolver.parset
+++ b/inputs/cellsolver.parset
@@ -39,15 +39,13 @@ numLevels = 3 3     # computes all levels from first to second entry
 
 ########################################################################################
 
-# --- Choose Gamma value:
-
-gamma=1.0  #(default)
+# --- Choose scale ratio gamma:
+gamma=1.0  #(default = 1.0)
 #gamma=50.0
 #gamma=0.01
 #gamma=3.0
 #gamma=0.5
 #gamma = 0.05
-#gamma=2.5
 
 #############################################
 #  Material / Prestrain parameters and ratios
@@ -68,8 +66,8 @@ alpha = 2.0
 #--- Lame-Parameters
 mu1=1.0
 
-#lambda1=0.0
-lambda1=1.0
+lambda1=0.0
+#lambda1=5.0
 
 
 # ---volume fraction  (default value = 1.0/4.0)
@@ -86,9 +84,13 @@ material_prestrain_imp= "parametrized_Laminate"
 #material_prestrain_imp= "analytical_Example"
 #material_prestrain_imp="isotropic_bilayer"
 #material_prestrain_imp= "circle_fiber"    #TEST
+#material_prestrain_imp= "matrix_material_circles"
+#material_prestrain_imp= "matrix_material_squares"
+#nF = 10 # Number of Fibers (default = 3)
+#rF = 0.1 # Fiber-Radius   (default = 0.5*(width/(2.0*nF))  //half of the max-fiber-radius mrF = (width/(2.0*nF)) )
 
 
-# --- (Optional output) write Material / prestrain / Corrector functions to .vtk-Files:
+# --- (Optional output) write Material / prestrain / Corrector functions to .vtk-Files (default=false):
 #write_materialFunctions = true
 #write_prestrainFunctions = true  # VTK norm of B ,
 #write_VTK = true
diff --git a/src/Cell-Problem.cc b/src/Cell-Problem.cc
index 53b9688b190cbd8e3da43f8216d33ee7fb04c08b..3813a62be3e2aee8d2740682ed797c8e06f37174 100644
--- a/src/Cell-Problem.cc
+++ b/src/Cell-Problem.cc
@@ -1697,7 +1697,8 @@ int main(int argc, char *argv[])
    {
         using VTKGridType = YaspGrid<dim, EquidistantOffsetCoordinates<double, dim> >;
 //         VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},{80,80,80});
-        VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},nElements);
+        VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},{40,40,40});
+//         VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},nElements);
         
         using GridViewVTK = VTKGridType::LeafGridView;
         const GridViewVTK gridView_VTK = grid_VTK.leafGridView();
@@ -1745,7 +1746,9 @@ int main(int argc, char *argv[])
    if (write_prestrainFunctions)
    {
     using VTKGridType = YaspGrid<dim, EquidistantOffsetCoordinates<double, dim> >;
-    VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},{80,80,80});
+//     VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},{80,80,80});
+    VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},{40,40,40});
+//     VTKGridType grid_VTK({-1.0/2.0, -1.0/2.0, -1.0/2.0},{1.0/2.0, 1.0/2.0, 1.0/2.0},2*nElements);
     using GridViewVTK = VTKGridType::LeafGridView;
     const GridViewVTK gridView_VTK = grid_VTK.leafGridView();