anyone experiencing a little clutch chatter when engaging 1st from a stop? I had an 06 mustang with a dual friction that did this, but it never did it when I had the stock single disc. and also it doesn't start chattering until the car is nice and warmed up, just curious if anyone else is having this. and if you engage at higher rpm, say 1200-1500, it doesn't do it even when its warmed up like I described, but I hate to ride the clutch like that. any comments or suggestions?