my gen 1 had stk. kaw plates and steels, stk judder plate and .090 clutch spring shims made from 12mm home depot washers oblonged to fit pressure plate correctley under the stk. springs. smooth as butter, lasted 3 yrs. still dont have gen 2 right wirh dragpac after trying several spring/shim combos. it holds, but has always been abrupt, sorta in or out launching.higher the spring pressure worse it is. running stk. shimmed springs now but still not smooth. even obvious just pulling off slowly. think ill go back to the complete oem gen 1 setup . got a good chassis but 60 ft. still not where it should be from clutch. clutch is only thing keeping me from reaching my goal. got sold on dragpac from listening to others, but my experience from over the years is oem plates/steels has worked best. launch style has a lot to do with how a hub holds up, unless ur brutal that gen 3 hub with welded rivets should hold, just ck it ocassionally as u should with any hub dragracing. riders are different, clutches same way. just have to find what suits u. oem clutch will hold a lot of hp with spring pressure upped, hard to beat imo.
Last edited by gazx10; 01-08-2016 at 08:50 AM.