diff --git a/profile/print/elegoo_saturn_4_tenacious_flex.env b/profile/print/elegoo_saturn_4_tenacious_flex.env
index 979be5f..f7e1d29 100644
--- a/profile/print/elegoo_saturn_4_tenacious_flex.env
+++ b/profile/print/elegoo_saturn_4_tenacious_flex.env
@@ -23,3 +23,6 @@ export MSLICER_FLAGS=(\
   --first-lift-speed 45 \
   --first-retract-speed 150
 )
+
+# this material isn't so resistant to tearing; mitigate by using wider shells
+export CASE_BATTERY_HARNESS_SHELL_THICKNESS_MM=2.0