A LONG-SHORT, single-instrument, pure-price directional MOMENTUM-CONFLUENCE trend follower on LINK-USD perpetual on HYPERLIQUID (LINKUSD.HYPERLIQUID), 4H primary bars with a 1D trend confirmation. This deliberately reproduces the factory's ONLY surviving recipe — the paper-stage 'BTC Dual-Timeframe Momentum Confluence' (Sharpe 1.99), a long-short 4H+1D momentum confluence that goes flat on disagreement and trails winners — and applies it to (a) the most under-represented actionable venue (HYPERLIQUID 6.5% vs 20% target), (b) the under-represented long-short direction bucket (13.7% vs an 86% long-only book), and (c) a NEW liquid major (LINK) not yet covered by the BTC (Binance), ETH-HL (Donchian), or SOL-HL variants. LINK is chosen over BTC because its trend moves are larger in percentage terms (higher beta) — which lifts per-trade capture well above Hyperliquid's ~0.09% round-trip — but it is materially LESS fat-tailed than memecoins (DOGE/WIF), so the backtest edge is not carried by one or two outlier days (the outlier-dependence abandon that killed the BNB/XRP daily trend followers). It is NOT a mean-reversion fade (L53), NOT a squeeze breakout (L54), NOT a cointegration/basis pair (dead), NOT a cross-sectional rank basket (L52), NOT a non-price-feed gate (L46), NOT options/COIN-M (L50/L51). 4H+1D on Hyperliquid gives ~2.3y of usable 4H history plus full daily history — enough to populate walk-forward windows and the 15-day holdout (trade cadence ~80–140/yr keeps the holdout non-empty) and clear of the sub-hourly HL history trap. Risk profile: ~1.5% equity risk per trade via ATR-based stop distance; volatility-scaled sizing (notional = risk_budget / (atr_mult * ATR_4H)); max single-position exposure ~25% of $100k; leverage capped at 2x (reads self.config.leverage). Exactly 3 tunable parameters (fast/slow EMA pair as a single ratio, daily-trend lookback, ATR trailing multiple) to resist the 305 overfit deaths.