I started placing my homebrews up high the last couple years too. They don't seem to startle the deer so much and they do come up with some interesting pictures. I've even thought about making some wooden wedges to push down behind them to adjust the angle just right. I never have got around to doing that so i'll just keep using sticks for now.
My avitar buck pic i got about 2 years go with the camera up about 7 feet high, next to a trail. He spotted it and stared at it, stood there for 3 pictures total. Didn't bother him a bit.