A market-neutral, two-leg RELATIVE-MOMENTUM (continuation, NOT reversion) strategy on Hyperliquid perpetuals: trade the ETHUSD-vs-BTCUSD relative trend by going long the relative WINNER and short the relative LOSER, dollar-balanced so net crypto-beta is ~zero. This is the momentum-signed expression of the factor this factory has repeatedly confirmed WORKS on crypto (cross-sectional momentum positive; the promoted ETH funding-confirmed TREND at Sharpe 2.74), and it deliberately FLIPS the sign of the anti-predictive reversion family that has failed catastrophically this session (VWAP-excursion-MR, cross-sectional reversal, flush-bounce, OI-fade — all confirmed that crypto CONTINUES rather than reverts). It avoids every broken path in the recent log: pure OHLCV (no OI/liquidations/IV supp-feed coverage wall that rendered those strategies untestable), perps on a MARGIN venue (no CASH-spot over-fill bug), and no options (no Deribit engine sizing/marking bug). Dollar-neutrality structurally fixes the breadth-failure that collapsed single-name funding-trend strategies into '2021 bull beta' — a long-ETH/short-BTC (or reverse) spread carries no net market beta, so its edge is the relative ETH-vs-BTC trend (ETH-season vs BTC-dominance regimes), which recurs in both bull and bear markets. Fills three under-represented quota buckets simultaneously (HYPERLIQUID 7.6%->20%, pairs, long-short 14.5%) with only 3 core parameters to resist the overfitting seen this session.