I don't hunt much from hang on stands, but when I set trees for them before season, I always carry pruners and floral wire along to hang some oak braches above and below the platform. Oak leaves will stay on right through the end of late season.

I hunt 90% of the time from a climber. I always try to hunt on the opposite side of the tree from where I expect deer to come from, and whenever possible, I look for a tree with multiple trunks. I agree that going high can help, but I don't believe its a magic bullet. I'll take 15 feet with adequate cover over 30 in a telephone pole tree any day.

Tyler