I bought the fence that is supplied with the Grizzly g0690 cabinet saw as an aftermarket add on for my used uni. I got the thing installed easily enough and am quite happy with it except for that fact that when I go to lock it down at any given postion, the front of the fence (end opposite the locking mech.) lifts up off the rail at least an inch if not two. Doesnt affect performance but it is a little annoying given that evrything else is perfect. Have any of you guys experienced this phenom and if so have you done anything about it?