I went out there weighing in at ~11,500lbs for truck, camper, gear and family of 4 with the tire still at 80psi. Did fine until I stopped, I knew this would happen, but wanted to see how far I could press my luck.
Dropped the fronts down to ~30 psi, rears to ~35 psi and this was enough to pop up back on top of the sand to easily get back to the highway. This is where we stopped before airing down.
Fun lake, going back next summer to kayak fish for Walleye! Sorry for slight hijack.