Ed, with alldue respect, I am guessing that there are a number of tools available to the surgeon to cut thru OR shave bone that won't cause destruction, including variable saws. They have been doing knee and other full joint replacements for years.
The point that some folks are trying to bring up has nothing to do with discrediting Ed Ashby's work, on the contrary, I can't think of a singe person that disagrees with it.
It has to do with the rest of the story. The rest of the game if you will. Even with a high power rifle you don't TRY to shoot the animal in its leg or paunch. There is a reason for that.
Archery (OK bowhunting) is a game of placement, of sharp broadheads and of getting close enough stealthily enough to make that arrow placement happen. It is not a matter of just shooting the animal and breaking bones and then make a follow up kill shot. Frankly that is why I almost never gun hunt anymore.
We try to do it right the first time, often because we only get a first time.
Arrow placement IS AS important, no, MORE important than any quality a broadhead can have.
As I recall the first thread indeed asked about sharpening, then went on to ask if they (single bevels) are worth it. . . and the debate began.
Nobody seems to state that they are not worthy and well qualified. Just that there is more to the game.
ChuckC