My experience has been good and bad, tough head for sure. I shoot 64 lbs and last year I shot 5 deer and this was my experience-
Doe at 22 yds, pass through great blood trail, ran 40 yds
Doe at 24 yds, pass through great blood trail, 60 yds and expired
Doe at 21 yds, quartering away, pass through great blood trail, ran 75 yds
Doe at 43 yds, broadside, only a entrance wound, no blood trail, lost deer and arrow
Doe at 46 yds, broadside, only a entrance wound, no blood trail, lost deer and arrow
I would recommend 30 yds or less shots at deer and or pull 70 lbs and keep shots under 40 yds