Need for #3301 (v4:native small-born birth+30-90s entry test): v4tape swaps cover only 523 of 5937 v4:native small-born pools in live_paths (A1/H3000 classes only, 9%). On the 523: P(1M real) 5.2% base, 11% when first-90s ETH buys >=0.5 (n=163, 18 runners): only 2x lift, 27 runners total, too thin. Spec: for every pool in live_paths.db with venue like 'v4:native%' and cap_first<100k, 10-19 Oct, give swaps for the first 180 s from birth (t, sender, tx_from, amount0, amount1, sqrtP, fee) in one jsonl at /opt/sw/v4tape/native_early.jsonl. Test: first-buyer breadth and ETH volume at +30/+60/+90 s, entry at that tick with tp/stop, judged on-time ex-top3 over 96 runners.