A LONG-SHORT, single-instrument, ASYMMETRIC-PAYOFF trend-follower on BTCUSD_PERP.BINANCE_CM — the CURRENT coin-margined (inverse) BTC perpetual on Binance COIN-M (explicitly the perpetual, NOT a dated/expired quarterly, per L58). It rides the ONLY edge the factory has ever promoted (directional BTC trend with a trailing stop that lets winners run) but makes two deliberate diversification moves versus the five pending single-asset trend sleeves (all on BINANCE USD-M or Hyperliquid): (1) VENUE — COIN-M is under-represented (3.4% vs a ≥5% target) and, decisively, carries the LOWEST futures fee in the factory (~0.06% round-trip taker vs ~0.10% on USD-M). Since the #1 killer across 1164 experiments is fee_edge — dozens of otherwise-real edges died grazing the 0.15% USD-M floor — running trend on the venue where the round-trip hurdle is 40% smaller is a direct, quantified attack on that failure mode. (2) CONSTRUCTION — a dual-EMA CROSSOVER regime with a chandelier trailing exit, mechanically distinct from the pending Donchian-breakout / momentum-confluence / MA-side / OI-gated constructions (so it is not L56 symbol-spray of one template). Pure OHLCV, computationally TRIVIAL (two EMAs + ATR, a few scalars per bar, no full-history rescans, no sorted()/min() in the hot path). Avoids every graveyard: NOT symmetric reversion/pairs (all died fee_edge/no_edge this session), NOT funding carry/differential (L57), NOT cross-sectional (died overfit), NOT options (infra-broken), NOT a liquidation feed (L58). Exactly 3 tunable parameters: fast EMA span, slow EMA span, and chandelier ATR multiple.