i figure you LT guys are the ones to come to for a question like this. when i'm in virginia, all the wheeling i do is slower, and it's more about traction at low speeds, so it's pretty much, get your tire pressure as low as you can without blowing it off the rim.
BUT...i'm now going to be permanent in florida, as i've finally got a hosue where i go to school. I hate mud, so the other wheeling around me is higher speed, mostly on sand, with whoops and banked turns, etc (think small-scale mojave/baja type of stuff). I've been working on my suspension to handle the terrain a little better for what my budjet can handle (icon remote resi front and back, timbren rear bumps, etc) but i'm wondering what yall run your tire psi at. traction is not as much of an issue since i'm on mostly dry ground, and it's florida, so there aren't really hills.