I have one that I've used for a few years. Maybe it is the blade adjustment (two screws) in yours causing the problem? I had a little trouble when I first got it but after throwing out the guide pin I just watch what I'm cutting closer. I made a base like the one on the woodchuck tool that was mentioned and I can clamp it to a belt sander but I keep using my taper tool instead of it because it is handier.