I realize this is an old thread but last night I adjusted my tire pressure down to 33 up front and about 31 out back. The rear of the car was really bouncing over everything. I noticed it a few days ago when crossing some tracks, it just bounced over it like the tires were hard as rocks. Mine were at 36 lbs cold. Setting them down to 31 and 33 has smoothed out the ride a bit. Others may disagree with this approach but I can definitely tell the difference in the way the rear of the car feels with the 5 lb adjustment.