Ok, fellas. I'm at a loss here and am turning to you guys for some tips.
I'm not a neader purist (bandsaw, drill press), but when it comes to sharpening, there's not a plug to be found in my shop. I use DMT stones and occasionally sandpaper glued to some MDF for my course griding. I also use the MKII for my honing guide. Here's the problem. When I sharpen chisels and irons, I inadvertently add a subtle skew to my blades. At first, it was so subtle that I was able to compensate with lateral adjustments on the planes. However, the more I have sharpened, the more severe the skew has become. Last weekend, I finally bit the bullet and set about regrinding every cutting tool that I have. I was extremely careful to apply even clamping pressure in the MKII. The skew still got worse. So I thought I was putting uneven pressure on the blades with my fingers, so I essentially stopped putting ANY pressure at all...just enough to hold the bevel against the stones. Still the skew got worse. I tried everything I could think of for hours to no avail. In fact, not only did the skew get worse, but on the wider blades (3/4" chisel - plane irons) the skew gave way to a completely unstraight edge. It's borderline wavy. Obviously, this is unacceptable.
Has anyone had a similar experience? Any thoughts on what I might be doing wrong? Tips to correct it? I don't have a grinder (and don't have the money to buy a reliable one) to regrind. I am actually considering filing the edges straight and true then slowly regrinding on sandpaper. Think that will work? Better techniques? HELP!