If you can make that hit with a larger multi-blade fixed bladed broadhead consistantly you are going to have more bleeding than with any other type.
How bout a larger multi-blade mechanical bladed broadhead? Why would fixed have the edge over " any other type" ? This is where I think the mechanical has the edge, because it has more potential to be accurately placed over a large fixed head, which is more susceptible to wind or a poor release...
That' s what I' m getting at. If your set up allows you to consistently put a well placed shot through a deer, a larger hole will bleed more and leave a better trail than a smaller hole. I would suspect this would hold true for poor hits where the better trail is of utmost importance, and where I think a well built mechanical has the edge.