diff --git a/resources/profiles/PrusaResearch.idx b/resources/profiles/PrusaResearch.idx
index cef8c654d..f73bedebf 100644
--- a/resources/profiles/PrusaResearch.idx
+++ b/resources/profiles/PrusaResearch.idx
@@ -1,4 +1,5 @@
 min_slic3r_version = 2.4.0-beta0
+1.4.0-beta1 Updated pad wall slope angle for SLA printers. Updated Filatech Filacarbon profile for Prusa MINI. 
 1.4.0-beta0 Added multiple Filatech and BASF filament profiles. Added material profiles for SL1S.
 min_slic3r_version = 2.4.0-alpha0
 1.4.0-alpha8 Added material profiles for Prusament Resin. Detect bridging perimeters enabled by default. 
@@ -14,10 +15,12 @@ min_slic3r_version = 2.4.0-alpha0
 1.3.0-alpha1 Added Prusament PCCF. Increased travel acceleration for Prusa MINI. Updated start g-code for Prusa MINI. Added multiple add:north and Extrudr filament profiles. Updated Z travel speed values.
 1.3.0-alpha0 Disabled thick bridges, updated support settings.
 min_slic3r_version = 2.3.2-alpha0
+1.3.3 Added multiple profiles for Filatech filaments. Added material profiles for SL1S SPEED. Updated SLA print settings.
 1.3.2 Added material profiles for Prusament Resin.
 1.3.1 Added multiple add:north and Extrudr filament profiles. Updated support head settings (SL1S).
 1.3.0 Added SL1S SPEED profiles.
 min_slic3r_version = 2.3.0-rc1
+1.2.10 Added multiple profiles for Filatech filaments. Updated SLA print settings (pad wall slope angle).
 1.2.9 Added material profiles for Prusament Resin.
 1.2.8 Added multiple add:north and Extrudr filament profiles.
 1.2.7 Updated "Prusament PC Blend Carbon Fiber" profile for Prusa MINI.
diff --git a/resources/profiles/PrusaResearch.ini b/resources/profiles/PrusaResearch.ini
index e243963ce..25ce1c270 100644
--- a/resources/profiles/PrusaResearch.ini
+++ b/resources/profiles/PrusaResearch.ini
@@ -5,7 +5,7 @@
 name = Prusa Research
 # Configuration version of this file. Config file will only be installed, if the config_version differs.
 # This means, the server may force the PrusaSlicer configuration to be downgraded.
-config_version = 1.4.0-beta0
+config_version = 1.4.0-beta1
 # Where to get the updates from?
 config_update_url = https://files.prusa3d.com/wp-content/uploads/repository/PrusaSlicer-settings-master/live/PrusaResearch/
 changelog_url = https://files.prusa3d.com/?latest=slicer-profiles&lng=%1%
@@ -2775,6 +2775,7 @@ compatible_printers_condition = nozzle_diameter[0]>=0.4 and printer_model!="MINI
 
 [filament:Filatech FilaCarbon @MINI]
 inherits = Filatech FilaCarbon; *ABSMINI*
+first_layer_bed_temperature = 100
 compatible_printers_condition = nozzle_diameter[0]>=0.4 and printer_model=="MINI"
 
 [filament:Filatech FilaPLA]
@@ -4475,7 +4476,7 @@ pad_enable = 1
 pad_max_merge_distance = 50
 pad_wall_height = 0
 pad_wall_thickness = 1
-pad_wall_slope = 90
+pad_wall_slope = 45
 slice_closing_radius = 0.005
 support_base_diameter = 3
 support_base_height = 1
diff --git a/src/libslic3r/SupportMaterial.cpp b/src/libslic3r/SupportMaterial.cpp
index a668a385b..9e1eb3e75 100644
--- a/src/libslic3r/SupportMaterial.cpp
+++ b/src/libslic3r/SupportMaterial.cpp
@@ -945,6 +945,8 @@ public:
                   { { union_ex(*m_support_polygons) },                                                                                                              { "src",   "green",  0.5f } },
                 });
 #endif /* SLIC3R_DEBUG */
+            //FIXME do we want to trim with the object here? On one side the columns will be thinner, on the other side support interfaces may disappear for snug supports.
+            // return diff(smooth_outward(closing(*m_support_polygons, closing_distance, SUPPORT_SURFACES_OFFSET_PARAMETERS), smoothing_distance), *m_trimming_polygons);
             return smooth_outward(closing(*m_support_polygons, closing_distance, SUPPORT_SURFACES_OFFSET_PARAMETERS), smoothing_distance);
         }
         assert(false);
@@ -2346,7 +2348,9 @@ PrintObjectSupportMaterial::MyLayersPtr PrintObjectSupportMaterial::bottom_conta
 
         Polygons &layer_support_area = layer_support_areas[layer_id];
         Polygons *layer_buildplate_covered = buildplate_covered.empty() ? nullptr : &buildplate_covered[layer_id];
-        task_group.run([&grid_params, &overhangs_projection, &overhangs_projection_raw, &layer, &layer_support_area, layer_buildplate_covered
+        // Filtering the propagated support columns to two extrusions, overlapping by maximum 20%.
+        float column_propagation_filtering_radius = scaled<float>(0.8 * 0.5 * (m_support_params.support_material_flow.spacing() + m_support_params.support_material_flow.width()));
+        task_group.run([&grid_params, &overhangs_projection, &overhangs_projection_raw, &layer, &layer_support_area, layer_buildplate_covered, column_propagation_filtering_radius
 #ifdef SLIC3R_DEBUG 
             , iRun, layer_id
 #endif /* SLIC3R_DEBUG */
@@ -2357,6 +2361,8 @@ PrintObjectSupportMaterial::MyLayersPtr PrintObjectSupportMaterial::bottom_conta
                     , iRun, layer_id, "general"
 #endif /* SLIC3R_DEBUG */
                 );
+                // When propagating support areas downwards, stop propagating the support column if it becomes too thin to be printable.
+                //overhangs_projection = opening(overhangs_projection, column_propagation_filtering_radius);
             });
 
         Polygons layer_support_area_enforcers;
@@ -4115,7 +4121,10 @@ void PrintObjectSupportMaterial::generate_toolpaths(
                     base_layer.merge(std::move(bottom_contact_layer));
                 else if (base_layer.empty() && ! bottom_contact_layer.empty() && ! bottom_contact_layer.layer->bridging)
                     base_layer = std::move(bottom_contact_layer);
-            }
+            } else if (bottom_contact_layer.could_merge(top_contact_layer))
+                top_contact_layer.merge(std::move(bottom_contact_layer));
+            else if (bottom_contact_layer.could_merge(interface_layer))
+                bottom_contact_layer.merge(std::move(interface_layer));
 
 #if 0
             if ( ! interface_layer.empty() && ! base_layer.empty()) {