See, that is why he should include those in the kit. I have the shim I doctored up on now, but if you see it tomorrow and think its a bad idea I will take it off. But the only other option is to tighten down the bolt in the blade grip enough. Surely some other first time Synergy builders are having issues with the blades and this kit. Does Matt have any extras laying around his house? I keep running into small hurdles, but I'm sure I will get over everything and one day have it up in the air.