Setup

Heavy riders need longer and stiffer boards than lighter riders for the same category and ability level. The base_length_for_weight table and the category-ideal flex ranges are calibrated around median adult body weight, which silently penalizes heavy riders for choosing boards that are actually better for them. When enabled and the rider's weight is 220 lb or more, this bias: - Extends the Length Fit ideal range upward by 1 cm per 10 lb over 220. At 255 lb, the ideal length range extends by 3 cm. A 164 cm board that would otherwise be penalized for being 'too long' now scores full Length Fit credit. - Shifts the Flex Fit ideal toward stiffer by 0.2 per 10 lb over 220. At 255 lb, the flex shift is 0.7. On freeride (category ideal 6-8), the adjusted range becomes 6.7-8.7, biasing toward stiffer boards. The bias is additive - it stacks on top of the existing gear flex shift (which adjusts based on your boots/bindings) and the per-factor multipliers you set above. When to disable: if you prefer shorter or softer boards despite being heavy (e.g., a park rider at 230 lb who wants a soft playful board), turn this off and the recommender will treat you as an 'average weight' rider for length and flex scoring.