We (sons and 2 friends) always go in and get set up at least 45-60 min before 1st light. We are dedicated tree stand hunters and we all stay until legal shooting hrs is over - 30 min after sunset. That's 11 1/2 hrs in a tree, every day. The only time we come down is when one of us tags and all the others show up to help. Of course if you shoot a deer at 7AM or 3pm, you won't see anyone for about 2 hrs. We usually have 4-6 guys setup in such a way that we cover an awful lot of area and we know EXACTLY where everyone is. Everyone has their own style, but we do it our way simply because it works. Just the thought of hearing a round go off and knowing it's absolutely one of us, is such a great feeling. That's when comrauderie and hunting go hand and hand.