I believe most broadheads made today will do the job, if shot placement is good, and shot selection is good.
It seems we are looking for a broadhead that will turn a poor hit into a good one, not going to happen! There are some that may help on a marginal shot, but for the most part, it comes down to placement and selection.
If you like the Montec use it, I have a buddy who shoots expandables out of a recurve, they are the type that slide back to open, works great for him, he has killed alot of big deer with them. He also picks his shots very carefully.
Did I mention shot selection is critical?
I still think it is hard to find a bad broadhead now days.
Andy