I had a simular problem on a razor about three months ago. It was a nos razor and I couldn't figure why I was getting different spine wear and different bevel wear. Upon really lookingover the blade I came to notice that the grind was off. I mean that if you were holding the razor edge up and eyed down the razor from heal to toe, the heal edge would be 1/16" or more left of center of spine & the toe edge was 1/16" right of center of spine. I'll bet I spent at least 3 & maybe 4 hours on that razor. I used every trick I could think of including using the side of some stones. Talk about a total PITA. I've learned to never get hung up on one particular method.