[ski-cat]

Anyone having any luck in this area???I have tried a few things, can't seem to improve over stock.

 

[Bucktail]

I have re clutched my F7, took several trys but this setup seems to work well. No improvment on the top end but hole shot and mid range are much better.

EPI AQ5 helix, EPI Maroon spring in the drive clutch, 64 gram polaris weights, Blue EPI spring in the driven. Hang on launches faster than my 1000.