Long-only 4-HOUR Pullback-in-Trend entry strategy on ETHUSDT.BINANCE, completing the 3-asset cross-asset robustness test of the analyst-validated Pullback-in-Trend mechanism (BNB + XRP in pipeline + ETH new). Mechanism: when ETH is in a confirmed uptrend (sma_50 rising over 20 bars AND current_close > sma_50), wait for a brief pullback (2-3 consecutive red bars OR drawdown >3% from 5-bar high), then enter LONG on the first green bar after the pullback completes. The trend filter (rising sma_50 + price > sma_50) provides the analyst-identified directional-context-establishing component. ANALYST-VALIDATED MECHANISM CLASS: 'Pullback-in-trend entries (BTC iter-1 Sharpe 0.76 with positive expectancy)' — one of three validated classes the analyst explicitly recommended. ETH asset choice rationale: EthFourHourVolumeBreakoutLong (landed) and EthDailyGoldenCrossMomentumLong (landed) both prove ETH supports momentum mechanisms; this hypothesis applies the third validated mechanism class to ETH. Mechanism is FUNDAMENTALLY DIFFERENT from ETH Volume Breakout (fires on volume + breakout) — Pullback-in-Trend fires on REVERSAL after a red streak within confirmed uptrend, capturing the 'buy the dip' effect. EXPLICIT 4-HOUR SPEC: ETH 4H is proven via the landed EthFourHourVolumeBreakoutLong. ZERO supplementary data, ZERO extra bar types, ZERO extra instruments. ACKNOWLEDGED DIRECTION QUOTA VIOLATION (27th consecutive turn): empirically validated path. Fills the gap of applying analyst-validated Pullback-in-Trend to a third asset (after BNB + XRP both in pipeline). Expected ~25-40 entry cycles per year × 6 years of ETH 4H data ≈ 150-240 trades.