diff --git a/scripts/frank-primary.env b/scripts/frank-primary.env
index cae68a8..3326058 100644
--- a/scripts/frank-primary.env
+++ b/scripts/frank-primary.env
@@ -130,6 +130,8 @@ FRANK_PRIMARY_TTM_MIN_MIB=140000
 # purpose.
 FRANK_PRIMARY_EXTRA_ARGS=
 # The .rad's minimum size in MiB (deployer gate; a truncated convert is a
-# guaranteed long-timeout boot instead of a fast failure). The pure copy of
-# the 172.8 GB checkpoint should land ~161 GiB.
-FRANK_PRIMARY_RAD_MIN_MIB=158000
+# guaranteed long-timeout boot instead of a fast failure). Plan-only measured
+# the container at 172.76 GiB = 176,906 MiB - the checkpoint's own fp8 mass
+# (experts ride byte-stacked, the PLE re-encodes at the checkpoint's scale),
+# not the ~161 GiB first estimate.
+FRANK_PRIMARY_RAD_MIN_MIB=178000