I have no idea what to attribute this phenomenon to but I will swear that I have observed the same behavior. I will generally pick one of my razors and shave with it for a long time. When I become tired of trying to hone it to a nice edge (my honing skills lack something that I've never been able to pinpoint), I will switch back to another razor and notice that it shaves much better than when I left off with it.:shrug: