Hi all -
I'm trying to restore a chipped blade, but having troubles: I breadknifed it flat, but can't get it sharp again. I keep changing grits (I've got the norton setup), but the only part to get sharp is the heel. It's getting sharper and sharper, which is terrific as I now understand (I think) the TNT and TPT, but the rest of the blade just varies a little bit sharper and less sharp no matter what I do.

Any advice? I'm really confused, as it seems I'm doing roughly the same thing to the whole blade...
Thanks very much for any insight-
SHuka