About ten years ago I thought up a great idea to sit in a treestand during the blacktail rut in an area that I knew had big bucks. My dad was off about 500 yards to my right trying to push some deer my way and ended up jumping a buck. He took a shot but missed clear as day, but in doing so jumped a herd of elk that was bedded between me and him. They just single filed right to me and literally went directly below the tree I was in. I could of jumped out and landed on any of them. The last one was a decent 5x5. Was one of the neatest experiences of my hunting career. It would of been very easy to take any of those elk with a gun or a bow. Point is, I don't see why using a treestand would be any different with elk than it would be with deer. Go for it