I have the Wolverine / Varigrind jig set up like many here. I've been using it for a while but to be honest, I haven't been disciplined in my approach and repeat-ability has been an issue. So I'm considering these Raptor set up tools on CSUSA's site. But I have a couple of questions if anyone can help. I read on SC forum that the distance from the arbor center of the grinder to the base of the jig must be 6 1/2" or these won't work. If this is so, then I'm forever tied to that particular dimension and I don't know if that will have any unintended consequences. Does anyone have any experience with using these on a regular basis and are there any things I should consider? Or are there any alternatives that work consistently and easily? Thanks!