Steve, you may be correct, I was definitely higher than I wanted to be, and could have been higher than I realized in the heat of the moment. Have never heard of the bones coming off the spine stopping an arrow...but that is why I am asking, I clearly have something to learn.
Solo - shooting 100gr Slick Tricks. If I hit shoulder it would have been on exit (which would have been dead deer), the arrow was definitely back, and the sound was more a thud as opposed to the loud crack I would expect if I hit shoulder on entry.
Appreciate the feedback.
Steve you may have it, I have never heard of the bones off the spine stopping an arrow, but I definitely hit something I have never heard of before.