I realize that this forum is a little old and hasn't been active for a while, but I want to add my recent experience for what it's worth.
Was bow hunting with a buddy yesterday - he was using a cross-bow, hunting out of a groundblind, while I was using my Hunters View climbing stand. Now, I'm 66 years old but in fairly good condition and have been using this climbing stand for some years, although not too much last couple of years.
Yesterday I was about 18 feet up and was enjoying a beautiful day (however, saw no deer). Was fiddling with the harness and twisted myself a bit too much in one direction and suddenly got an extreme pain in the left shoulder and left side of my neck. I mean it was a severe pain when moving into a certain position. Sat down and found a somewhat comfortable postion and figured maybe I had pinched a nerve.
As I sat there slightly rotating the should to further ease the pain, it dawned on me that I may has some serious difficulty trying to climb down with this should hurting so bad.
I had a two-way radio and my buddy and I check in each hour, but as I thought about it I realized that he really could not help me get down, short of having a ladder.
As I played with the shoulder the pain did ease up significantly and eventually I managed to climb safely, but slowly to the ground.
Take-away lesson: Will not be using that climbing when hunting alone, and will try to be even more careful when I do use it.