Mixed results with the Summit kit.
I bought the Hilltopper Summit kit. The documention was not accurate and incomplete. The kit met my needs but not my expectations. The way to reset the trip counter is not obvious and their tech did not know the proper way to do it. There are several features that the display is capable of but not implemented. I expected more of their top of the line kit. The display was initially defective but their tech was good about sending another one. The throttle has a dead zone and it is difficult to control the power.