Getting ready to re-do my clutch, I'm putting new plates, new hub and maybe a new basket. Not sure about the pressure plate though because I haven't seen a new one to tell if mine is worn and no info in the manual. The surface is nice and smooth but the outer edge is higher than the rest formaing a lip? Is this normal or has it worn down and formed the lip? If it is worn will it be oaky ot leave it for a while as long as it's smooth? Not the best time of yr. to be spending more money on the bike!