It probably wasn't the higher pressure as much as the inconsistent pressure. A lot of people run 3 to 5 lbs over on alll 4 wheels.
Originally Posted by J-hop
It is pretty hard on the center diff to be ripping the ebrake like that. I personally wouldn't be doing that to get the tail end out....
Yep. If you want the tail out do this. Lift the throttle, turn the wheel, back on the throttle, countersteer and modulate the throttle to keep the drift.