WOW
I have seen a lot of broadhead wounds, all from fixed blades, mine or others.
I have never seen anything like that, on an ENTRANCE wound!!!!!! Its hard to argue against those kind of results.
My old Razorheads don't have to "open", but.....still, ......if I believed mechanicals would do that every time, I'd reconsider the issue.
BTW
Used to hunt w/ a group of fellows/club that used the Simmons Interceptor, which is a BIG fixed blade, 175 gr, can't remember the cut diameter, it was at least 1.5-1.75" It was killer, but needed heavy draw weight and large arrows/fletch to stabilize and not drop like a rock. All of them have switched to something more conventional as they aged and have reduced draw/holding weight.