RE: rangefinders in a tree stand.
I bought a range finder two years ago and when I first got it I used it around the house a little to make sure it worked and I haven't touched it since. I always mean to take it to the archery club, but I forget too. I also always mean to take up in my stand to get a rough idea of the yardages to different land marks, but I never do. Its a perfect example of me being compulsive at Cabela's.