A long-only, single-instrument BTC strategy on BTCUSDT.BINANCE 4H bars that combines the analyst-validated Volume-Confirmed Donchian Breakout template (which scored Sharpe 3.63 + max DD 2.94% + 6/7 years positive on ADA but was killed by May-2026-window holdout noise) with an explicit ANTI-CHOP REGIME FILTER — the analyst's exact prescriptive recommendation from the abandon feedback: 'rebuilt with a defensive regime-detection filter that auto-disables entries during 2026-style chop regimes.' The anti-chop mechanism uses directional efficiency ratio = abs(net price change over N bars) / sum(absolute bar-to-bar returns over N bars). A ratio close to 1.0 means price moves directionally (trending); close to 0.0 means price oscillates with little net progress (choppy). Entries are gated to require this ratio >= 0.5 over the last 30 bars (5 days on 4H) — disabling entries during the chop regimes that caused the ADA holdout failure. Critically distinct from BTCVolumeConfirmedDonchianCalmVolLong (which uses LOW realized vol — a different regime axis): a market can be CALM AND CHOPPY (low vol grinding sideways — bad for breakouts) or VOLATILE AND TRENDING (high vol with clear direction — good for breakouts). The directional-efficiency filter discriminates regardless of vol level, complementing rather than duplicating the calm-vol filter. Implements the analyst's exact remediation for the most recent abandon. Built on BTCUSDT.BINANCE 4H — confirmed working (BtcFourHourVolumeBreakoutLong + BTCFailedBreakdownReclaimLong + BTCVolumeConfirmedDonchianCalmVolLong all validate this bar type). Single-instrument, no cross-venue infrastructure risk.