After further testing we found that simple roller changes can have a huge effect on the overall performance of these units. We have 3 set-ups for each kit, one for lite loads, one for medium loads, and one for heavy loads.

It is hard to get any of these units except for the thundercat 1000 to perform better everywhere, these set-up options allow for you to select if you want more top end performance or bottom end and mid-range performance with better response and back shifting. Heavier rollers will run better on a longer run but lighter ones feel more responsive and accelerate the same up to about 600' or so, the lighter rollers back shift 100 times better though.