diff --git a/justfile b/justfile
index 2101c7c..d82e024 100644
--- a/justfile
+++ b/justfile
@@ -142,7 +142,7 @@ build-substrate MODES="run_tests,exit_code,sentinel":
 # (per-mode hacks>0 + finite first_step) + the per-step hk_<mode> columns. mix=0.125
 # is the locked default (omit to inherit it). Vanilla needs no v_hack; for an
 # erase/route substrate run, add --v-hack-path explicitly.
-run-substrate INTERV="none" SEED="41" STEPS="80":
+run-substrate INTERV="none" SEED="41" STEPS="60":
     {{ TRAIN }} fast --intervention={{ INTERV }} \
         --teacher-pool-dir=out/pools/substrate \
         --seed={{ SEED }} --steps={{ STEPS }} --out-tag=_substrate3_{{ INTERV }}_s{{ SEED }}