I contacted a Pathologist I used to work with and asked him this question. I explained that I was bowhunting and using arrowheads that were razor sharp, but got to wondering if using a super sharp head was necessary? Dr. Bennet has conducted a few thousand autopsies in his career with over a hundred of them where the victim died by the means of a sharp instrument. The short version of what he said was that if penetration was an issued, the sharper the head the better because the blades would not drag as much. If penetration is not an issue then a duller blade actually does more damage. A scalpal makes a neat cut which will close back upon itself when finished while a dull blade actually rips and tears tissue. This ripping and tearing causes more bleeding because it causes more damage.
Thats clear as mud.

While it makes a lot of sense, it also says I' ve wasted my time sharpening and polishing the edges of my broadheads.
What opinions do you have????