hi, i have a werks clutch install on one of my buggy and i never got it work right ! do i need any shim ? any where ? i try the carbon with gold springs and it take about 1/2 throttle to got the car start moving [:'(] and i try rulon with the green spring and the darn thing hasnt move at all [:@] , i'm not sure how far to screw down the spring ! any advice would be appreciated...