I go up as high as the terrain and the foliage gives me a good view of the area. Usually that works oout to be about 20-25 feet where I hunt.

Regardless of how high up you go, please be certain to wear a good fall restraint harness. These things are not all that expensive and can be, and have been, life savers as well as preventing serious spinal or head injuries.

I know almost first hand. About 15 years ago, my brother fell less than 1o'. Hit a limb on the way down. He came withing a gnat-hair of being paralyzed. Shattered T4, bruised-stretched the spinal chord, but it did not sever it. Spent months in a halo. He has never recovered completely. I had given him a decent restraint just that Christmas. It was still in the bag. Personally I wear one, 100% of the times I am in a tree stand of any kind ... ladder, lock-on or climber.