The source ground term is resource points times point three eight times local vulnerability, differing from the adjacent point three five comment. At illustrative vulnerability one, resources ten and twenty contribute three point eight and seven point six share points. Bars share forty-five pixels per contribution point. These are uncalibrated inputs, not verified campaign effects or polling estimates. The source tactical term is squeeze divided by one hundred times twelve times vulnerability. At hypothetical vulnerability one, squeeze twenty-five and fifty yield three and six share points. Bars share sixty pixels per contribution point. Competitor-share reductions use separate branch coefficients. No actual election outcome or current party position is asserted. The source turnout term is entered bump times point eight. Illustrative bumps five and ten contribute four and eight share points. Bars share forty-five pixels per point. The combined share is then clamped between five and sixty-eight, and a seat is counted won only when its modeled margin is strictly positive. These are source heuristics, not calibrated forecasts. Complete JSON/reset and native responsive first-footer preservation remain checked.