how much preload are you running with the Lucky's? the carts were a huge improvement for me over stock but over time i still wanted them to perform better, especially when i swapped them from a 250 -> 200RR ... my ah-ha moment was dropping preload to 3mm (from 6mm as delivered) + 135mm air gap (from 120mm as delivered, if i remember correctly)
i also follow AMPs spring chart, way more accurate. i'm ~175lbs standard / ~200lbs kitted up with .44/5.4 on the 200 but ran .46/5.6 on the 250.