Well, at this time of year it's about a 50/50 chance the sun won't even be out. That said, I don't worry about the sun being in my face or at my back as much as I worry about where my shadow is, especially with no leaves around. If your shadow is laying on the ground around a deer and you move, you're dead. If the sun has to be in my face, I sit facing the tree and let the tree shade me. I can do that with my climber. As the sun moves I can also shimmy around the tree to stay in the shade. Maybe you're too tied down to the edge. Get a little deeper or find a double tree or something like that. The deer probably aren't going to get passed me before I shoot if I'm going to. If you sit/stand facing the tree you have to be real slow and deliberate about moving too much to play peek a boo around the tree. Also, before I sit naked I'll snip off a couple pine bows or something like that and weave into my stand for break up and cover. My API has some well placed braces etc that lend well to doing that. A couple whispy hemlocks, cedars or just pine limbs really hide you.