diff --git a/src/kiri-mode/cam/slice.js b/src/kiri-mode/cam/slice.js
index 0456ad31..69a3d37b 100644
--- a/src/kiri-mode/cam/slice.js
+++ b/src/kiri-mode/cam/slice.js
@@ -218,7 +218,6 @@
             }
         }
         poly.points = newpts;
-        poly.length = newpts.length;
         if (poly.inner) {
             CAM.addDogbones(poly.inner, dist, true);
         }
diff --git a/src/kiri/init.js b/src/kiri/init.js
index 049f3446..3a1d0135 100644
--- a/src/kiri/init.js
+++ b/src/kiri/init.js
@@ -2499,7 +2499,7 @@
             CATALOG.addFileListener(updateCatalog);
             SPACE.view.setZoom(control.reverseZoom, control.zoomSpeed);
             SPACE.platform.setGridZOff(undefined);
-            SPACE.platform.setZOff(0.01);
+            SPACE.platform.setZOff(0.05);
 
             // restore UI state from settings
             UI.showOrigin.checked = control.showOrigin;