i just recently purchased a kalamazoo 1x42 running at 1750 r.p.m, i cant seem to sharpen any of my knives even if my life depended on it! currently all the knives i have sharpened I've removed the factory bevel and changed them to a convex "which i prefer" but now all that i have are butter knives with covex edges. I always sharpen the knives on the slack part of the sander and always get a burr, i then turn the knife over and do the same thing on the other side, when the burr starts to get smaller and smaller i would then use the mouse pad and sand paper method and strop the knife to try and remove what ever burr is left. the only grit that i am using is 320 grit which by the way is the only grit i have available until some 600 and 800 grit ones come in. can anyone enlighten me to the ways of sharpening with a sander? thanks