# v2ramp fix for audit #589 (testmgr3, 10 Oct)
- Forward script v2ramp.py now: arm A = fill at first Sync >= entry Sync +12 s, exit first Sync >= +303 s, no exit Sync = 0x (answers auditor doubt a). Arm C = old no-latency fills.
- Result n=95 (sync-confirmed): A 2.87x mean (10 below 1x), C 4.57x. Latency costs ~37%; still far above kill 1.3x. A and B(half size) same, B adds nothing.
- BUG found and fixed: the chain log window was 1700 blocks = only ~176 s (block ~0.1 s), so the old forward exit was "last Sync inside 176 s", not 300 s. Window now 3500 blocks (~364 s). The cron run also never finished from an empty cache (200 s timeout, cache saved only at the end): now saved per pair.
- Still open for VERIFIED: sellability eth_call on 3 pairs incl. no-seller; tx.from of buyers on no-seller pairs (asked dataeng).