I wonder if the vibration issue would be there with the kartboy bushings and sti shifter? If anyone tries the karboy bushing w/stiSS, let us know. Sounds like a good combo. I will definitely see what I think about my stiSS with stock bushings before making switch. It is such a low cost, easy mod if it enhances feel.
Thanks for previous answers about warrantee, combining kartboy bushing with stiSS and putting into 1st gear on a roll with stiSS.