My comment was based on what Garrett Hack said in a workshop I attended in Saratoga Springs a couple of weeks ago. He reported "using up" the blades on his most used planes in 2-3 years. I didn't see anything at all questionable about his sharpening technique, it actually seemed pretty minimalist-- about three swipes on a fine stone and he was done. It seems that he has only a few planes that he uses constantly.