I just recently purchased a used supergrind 2000. I have not bothered to read the id tag to even know how old it is or what model it is-figures. I am restoring a bunch of Stanley planes I have purchased over the years, and I am to the point where I want to sharpen blades for useable shape. I redressed the wheel and checked for tool rest bar perpendicular to wheel, all looks good, however, when I ground the first blade the top is now ground dramatically out of square. I've read through the manual to be sure I am on target with set up, but I do not see anything that addresses my issue. I have watched a couple of U-tube videos and do not see anything there in terms of my dressing the wheel or set up. Obviously I am doing something very basic wrong. I have never used a grinding device like this before, I always roughed my edge on a bench grinder and then worked the blade on waterstones to sharp-very time consuming. I was hoping to be able to achieve a sharp edge with this machine in a much quicker and friendlier approach. Advise please.