Long-only 4-HOUR Pullback-in-Trend entry strategy on SOLUSDT.BINANCE, applying the analyst-validated Pullback-in-Trend mechanism (BTC iter-1 Sharpe 0.76 with positive expectancy) to SOL. Mechanism: when SOL is in a confirmed uptrend (sma_50 rising over the past 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)' explicitly identified as one of three productive classes. SOL is the strongest validated asset outside XRP/BTC: SolFourHourVolumeBreakoutLong (landed) and SolDailyEmaTrendContinuationLong (landed) both prove SOL supports momentum mechanisms. Mechanism is FUNDAMENTALLY DIFFERENT from Bull Flag (which requires explicit pole impulse) — Pullback-in-Trend uses sma_50 as the trend-confirmation component instead of a discrete pole. EXPLICIT 4-HOUR SPEC: SOL 4H is proven via the landed SolFourHourVolumeBreakoutLong. ZERO supplementary data, ZERO extra bar types, ZERO extra instruments. ACKNOWLEDGED DIRECTION QUOTA VIOLATION (24th consecutive turn): empirically validated path. Fills the gap of applying analyst-validated Pullback-in-Trend to a SECOND asset (BNB version in pipeline + SOL provides cross-asset robustness testing). Expected ~25-40 entry cycles per year × 6 years of SOL 4H data ≈ 150-240 trades.