tire pressure with 35/12.50/15 MTRs

I just put my new MTRs on this weekend. I like the thread to sit flat on the ground. I am running 20 in the fronts and 18 in the rears to get the street foot print flat. Is this right? It seems a little low to me. I notice no wierd steering quirks. What pressures are you guys with MTRs running?

I run 25 frt and 28 rear on my 33x12.50/15 TSL Radials.

a little more info for ya. I am not running my tire carrier at the moment. I have a protofab bumper and ramsey winch on the front. All the rest is pretty much stock.

jrsxj98: thanks for the input but, a 35" tire has a lot more air than a 33" tire. I ran about the same pressures with my 33's when I had them.