I think your missing a very important point there rcd. Razor sharp broadheads thru the vitals, kill deer. Marginal shots with sharp blades give the animal a very good chance of healing up the wound and surviving. Dull blades and bad hits equate to lost animals. They then can suffer for days or weeks while infection sets in and takes them down slowly. Ever get a razor or paper cut? Ever tear some of your flesh? Which heals faster?
I seem to always have 1st hand/finger knowledge of this.
Do ya now?[

]