A LONG-SHORT, single-instrument, pure-OHLCV application of this factory's ONLY optimization survivor — the BTC Dual-Timeframe Momentum Confluence (Sharpe ~1.99, in paper) — to BNB, the LEAST BitCoin-correlated liquid major, on the venue where the recipe demonstrably clears the robustness gauntlet (Binance USD-M, multi-year history). The design is forced by this session's evidence. Six single-name Hyperliquid confluence/momentum variants died, and the failures clustered on causes structurally tied to HL's ~2.5-year history: OVERFIT/PBO (a 225-trial optimizer noise-selects when the OOS window is barely a year — ETH-HL pullback PBO 0.73, SOL-HL Donchian PBO 0.64 holdout -1.67) and UNMEASURABLE SAMPLE (LINK-HL TSMOM ~50 trades < 100 floor). BNB on Binance has 4+ years of 4H history, which fixes BOTH: 150+ trades (clears the measurability floor) and long multi-regime walk-forward windows (the antidote to PBO/holdout collapse). The distinctive PORTFOLIO value here is ASSET DIVERSIFICATION, not another correlated clone: BTC/ETH confluence are already in the pipeline and move together; BNB is an exchange-token whose price is driven substantially by idiosyncratic factors (BNB burns, Binance ecosystem flows, launchpad cycles) and is the lowest-BTC-beta major, so a BNB trend book is genuinely decorrelated return stream from the existing BTC/ETH momentum book — the diversification a real desk seeks, and it fills the long_short gap. It reuses the ALREADY-VALIDATED generic confluence signal verbatim (not a bespoke filter), minimizing the parameter surface the multiple-testing correction punishes. Materially different from every pipeline item: BtcDualTimeframe (BTC), EthBinanceDualTimeframe (ETH), and the HL variants (short/hostile history) — this is BNB, a decorrelated asset, on multi-year Binance data. Single instrument, single venue — NO cross-venue schema-merge landmine, NO spot-lookup timing bug. Pure OHLCV, no supplementary feed. I acknowledge this adds to the over-represented BINANCE venue; given 0.9% session survival and the demonstrated fact that the confluence survives ONLY on multi-year Binance history (unavailable on under-represented venues), I prioritize a real path through the gates plus asset decorrelation over the venue quota.