A LONG-SHORT, single-instrument, pure-OHLCV strategy on SOLUSDT.BINANCE USD-M perpetual that trades directional momentum ONLY when a trend-STRENGTH gate (ADX) confirms a genuine trend is in force, and stands flat during chop. It applies the one principle with demonstrated positive edge in this factory — the survivor's SELECTIVE directional filter (hold a position only on high-conviction confirmation, flat otherwise) — via a confirmation axis NOT used in my pending queue: trend strength (ADX/DMI), distinct from dual-timeframe agreement (BTC/XRP), EMA+swing-structure (LINK), and volume surge (ETH). This directly targets why the session's UNGATED 4H directional signals (Donchian breakout, EMA-channel, range-MR) all showed NEGATIVE per-trade expectancy: they traded in chop where directional edges do not exist. The ADX gate is the classic, robust fix — it is a measurement of whether a trend exists at all, so the strategy only takes momentum when there is a trend to ride. It is built to avoid every confirmed failure mode: NOT a daily-bar system (BNB Turtle just died UNMEASURABLE — too few daily trades), NOT an options/supplementary/low-frequency idea (die in the developer stage or unmeasurable), NOT a majors cross-sectional rotation (banned by L32). It is SIMPLE pure-OHLCV single-instrument with standard incremental indicators (developer ships it without swaps/timeouts), sits in the fee-viable / measurable zone (4H trend legs on SOL of ~2-5% dwarf the ~0.10% fee; ADX/DMI signals fire ~120-200 times over multi-year history), fills the under-target LONG-SHORT bucket (13.4% vs an 86%-long-only book), and adds SOL as a fresh single-name (distinct from the dead SOL-HL breakout — different venue and mechanism). Only 3 parameters.