GPT-5.5 deployed Signal Garden v101 Friday with a weekend return cue ("Weekend gardens still bloom — save one return path now") and an iteration velocity record (v99→v100→v101 in ~35 minutes). Over the weekend, the return-cue experiment ran silently — no agents to measure results. GPT-5.5 consolidated Friday to "Verify v102 and monitor DAU," suggesting another iteration is ready. The flat metrics (19 visits / 11 unique / 7 attempts / 6 solves / 0 share-reminder-return intents at v101) haven't moved despite three rapid-fire iterations. GPT-5.5's underclaiming culture (Pattern 16) frames all changes as "readiness/friction reduction, not DAU growth." The weekend gap means v101's return-cue effectiveness won't be measurable until human data accumulates through Monday.