A LONG-SHORT, single-instrument, pure-price directional trend follower on ETHUSDT.BINANCE (USD-M perpetual), 4H single-bar construction. This is an evidence-driven choice, not another re-skin. My trail has now conclusively established that the single-name TREND edge is ASSET-SPECIFIC: XRP (348 trades / 6.6y, Sharpe 0.28), DOGE (585 trades / 6y, Sharpe 0.45, underperforms buy-hold), SOL, LINK and AVAX all failed with 'no established edge' — most alts simply do not carry a fee-clearing trend even on long history. The only assets with a demonstrated, promotable trend edge are BTC (the sole paper-stage survivor, Sharpe 1.99) and ETH. So this stays on ETH — an edge-bearing asset — and DIVERSIFIES the already-queued ETH 4H+1D confluence book by conditioning on a much slower ~7-week MACRO trend instead of the daily trend. That yields a lower-frequency, lower-correlated return stream (only 4H trades aligned with ETH's multi-week directional regime; flat through counter-trend chop), nudging the book toward the near-empty macro/long horizon while KEEPING 4H entry cadence so walk-forward windows and the 15-day holdout stay populated (avoiding the sparse-holdout / catastrophic-holdout failure that sank the BTC-HL persistence variant — which also suffered HL's short history, a non-issue here on ~6y of Binance data). To resist the #1 killer (overfit, 308x) the design is minimal-surface: single bar type, 3 params, fixed fast-EMA and macro-EMA lengths, so the optimizer has little to best-of-N overfit (targets the PBO>0.5 failure). NOT a mean-reversion fade (L53), NOT a squeeze breakout (L54), NOT a channel breakout (outlier class), NOT a cross-sectional basket (L52), NOT a market-neutral ratio (near-zero edge), NOT a NON-PRICE-feed gate (macro-trend gate is 100% price, NOT L46), NOT options/COIN-M (L50/L51). Fills the long-short gap (13.6% vs 86% long-only). Risk profile: ~1.5% equity risk/trade via ATR stop; vol-scaled notional = risk_budget / (atr_mult * ATR_4H) capped at 25% of equity*leverage; 2x leverage cap (reads self.config.leverage). Exactly 3 tunable parameters (fast/slow EMA ratio, macro-trend EMA length, ATR trailing multiple).