diff --git a/scripts/orchestra_e2e_healthcheck.sh b/scripts/orchestra_e2e_healthcheck.sh
index 34e174e..0b71fd3 100755
--- a/scripts/orchestra_e2e_healthcheck.sh
+++ b/scripts/orchestra_e2e_healthcheck.sh
@@ -159,8 +159,11 @@ main() {
     exit 2
   fi
 
+  local to_run=$CHECKS
+  [ -n "$only" ] && to_run=$only
+
   local name
-  for name in $CHECKS; do
+  for name in $to_run; do
     if "check_$name"; then
       record "$name" ok
     else
@@ -208,3 +211,5 @@ main() {
 main "$@"
 
 # Rig: an operator edit made after phase-1 was signed off.
+
+# Rig: a second tree move, with no new sign-off.