Maximizing BFG Radial T/A Traction

Some additional information on the BFGs. What I did was to go to a shopping center near me that had gone out of business. I had a giant empty area to do a few tests. I got some pieces of chalk and chalked the rear tires from inboard edge to outboard edge. Checked my tire pressure and did a burnout. I repeated this until I found that the entire chalk mark had worn away during the burn out indicating full contact patch. I started at 28psi and got full contact at 22psi. Still didn't hook at all in 1st from a dig. Just made a wider tire mark. Going lower than 22psi didn't help either. Went down to 18.