Sorry to take us off on another tangent, but while the subject's relatively fresh, does anyone know if there's a way to adjudicate by RAW whether the nimble enchantment's extra weight is added before or after adjusting weight for a special material? E.g., if you make your masterwork breastplate (normally 30 lb.) out of mithral (divide weight in half) and give it the nimble property (+5 lb.), would it weigh 17.5 lb. or 20 lb.?