Non-beadlock user, Nitto 35 tires on Method rims; I feel tire and wheel combo is important info for what you can air down to. I ran 37s on my JK and did the same thing, for JL trying to keep a more stock drivetrain. I air down to 7-15psi depending on conditions, lots of fire roads I'll do 10-15, mud or slow crawling I'll do 7-12psi depending on conditions. For snow wheeling I start at 10psi and will go down to 5psi if the going gets slippery.