I dont guess any of you saw this under the how to board.....ski was bucking like a bronko....we tried everything and I mean everything ,truing,tabs,no tabs,washer under tabs,every angle on the ff plate,differant j-plate,two differant grates..nothing worked....took off pump shoe and found it broken...this is how I fixed it http://greenhulk.net/forums/showthread.php?t=59294 have not tested it yet but the fit is perfect.