don't use the red clutch shoe it will make you have to constantly keep adjusting the clutch bell gap as it is a sliping shoe and wares very quickly. stick with the gray shoe kyosho part #fmw 10 it may be a difrent number for the 3r evo clutch. What are you looking for? a punchy clutch feel or better axcelaration? If you want a puncher clutch feel take a 0.1mm shim off the thrust bearing side or "endplay" and put it to your shoe to clutch bell "gap" that way your not changing anthing just moving the clutch bell 0.1mm out from the shoe in outher words. Leave the 1mm spring tention and change the Gap to 0.5mm and the endplay leve the same 0.1mm. The outher option is to drop the first gear to 1 lower ratio than what you have now just one tooth on the spur may give the feel your looking for. You can also try to put more spring tention into the clutch but make shore its not slipping to much. Are you making good run time with your engine compared to outhers were you race? it may not be a clutch prob at all. I would do a litle testing and comparing with people who run the same chassis and the same or difrent engine and clutch settings. Regards Jeremy.