well, you can add me to the busted washer/piston club. I ran the other day for about 3 hours at the local track and noticed a rear shock was all out of whack...tore it down and the bottom washer was busted in 1/2 and the piston's center hole was mangled...I rebuilt him (using clutch shim washers) and reduced droop (I go by eye to eye shock length) by 1.5 mm. I was SURE the arms were hitting the droop screws at rest (shock not stopping the travel). I ran again on Monday and after about 2 hours, the same thing happened to the other rear shock. I rebuilt it again and reduced droop by another 1.5mm...Now, I have only ran it about an hour after that, but they appear to be fine. I do think there should be bigger washers on the bottom side as well, but hopefully the reduced droop will fix it. it is odd that some of the team drivers do not limit the droop and they have no issues (I also made sure the piston was able to rotate and turn by hand, so the lock nut was not tightened too much).
Also, what washers are you all using inside the shock body to limit the droop?
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