How many sharpenings before they change the edge geometry so much that it must be completely re-shaped again?
Not sure.
How many sharpening's do you normally achieve before having to re-shape the edge?
Dave
Interesting question and I'm curious how others will answer. On my personal knives I shape the blade geometry every time I sharpen, a little bit to retain the contour(s) and once a knife is sharp, never reshape it again unless somebody else like my wife or kids uses it. My personal hunting knives, never, and keep my knives away from them. I keep a few cheap knives around to loan people... including other hunters.
I'm the official old codger knife sharpener for my extended family, usually working over my married daughter's knives once or maybe twice a year. On those knives I start each sharpening process by renovating the edge geometry.
