Only one deer with archery so far this year, but it was with one of my Wasp JakHammers (1 3/4" cut) like I've been using for years. Right through the heart, and a darn good thing - because the blades never opened!!!!!!!
Went back and found the arrow the next morning and the blades were still banded closed.
Needless to say, I'm back to my other "old favorite" - G-5 Montecs. I've killed a deer or two in the past with Montecs so I don't feel to disadvantaged.