I've been fiddling with my PM2000 and TS-Aligner Jr. today, and I've noticed that the UHMW sub-fence on the Accufence tends to deviate in and out along its length +/- .005 of an inch. I've tried torquing the bolts which attach the fence so that they are all the same, but this doesn't seem to straighten it out. The fence reads the same at the front and back, it's just in between those points that it bows in and out. Is it worth the time to try to iron this UHMW subfence out using paper shims between the subfence and main fence, or am I just being waaaaay too finicky? IMO, any deviation on the fence can potentially translate over to the blade and result in a chattery finish on the cut. Any opinions?