My forks are too harsh on smaller sharp bumps at high speed. I weigh 160# in gear and changed to .43 fork springs. This didn't change the harshness at all but dramatically improved cornering. I then switched to the 1.61kg ICS and decreased outer oil level to 325cc. This helped out nothing, I got high speed instability and some insane hard bottom outs, while still retaining every bit of the harshness. My current setup is .43 springs 400cc honda 5wt, stock ics. compression clicker all the way out, rebound like 7-10 out (I change it around in that range) This seems to work the best, but now it's time to change up the shims. I took the midvalve apart and measured the shims. I'm thinking the rebound shims must be the ones on top, so it looks like this: mid valve: nut thick washer 2 thin washers rebound shims: 1 11 x .21 1 13 x .11 1 15 x .11 1 17 x .11 1 18 x .11 1 19 x .11 2 20 x .11 piston compression shims: 6 20 x .11 1 19 x .11 spring collar small washers spring seat Didn't take apart the basevalve. Should I change the shims in the midvalve or basevalve? I can take apart the basevalve and measure whatever shims are in there also. The best suspension I ever rode was on the stock 09 yz450 Is there some way to make it like that?