I am "old-school" and prefer a fixed broadhead... I tried the mechanicals early on when they first came out and had a couple terminal failures... I lost confidence in them and went back to a small, low profile fixed design... I am sure that they have come a long way since then. I have taken many dozen large bodied animals (bigger that WT's) with what "appear" to be tiny fixed broadheads and they do a quick and efficient job. I can remember using a Rocket Steelhead 75 grain one fall and was calling moose and looking quizzically and with skepticism at the tiny little head on the end of my arrow... a short while later after one arrow through the lungs of a nice bull moose and watching him hit the ground in a few seconds, I reminded myself that properly placing the arrow is the primary issue... despite that experience, I went back to the slightly larger Rocket Steelhead 125 grain, which still has a very compact profile. Personally, I like to tune so that my broadheads and field points have the same POI... this is nice for target practice, but not always possible with some broadhead designs... my current system has the same POI for both broadheads and field points.