Because of the its short wheelbase and wider tires, our cars have a tendacy to wander while crusing on the highway. Ive noticed the effect also varies more on hardtop surfaces than ashphalt surfaces. My Crossie has surer footing on asphalt surfaces. She has 62K miles on her and the stabilizer still looks new. I may change her out when I buy her a new set of shoes.

But to address the "tire pressure controversy" here is some advice from the Tire Rack

http://www.tirerack.com/tires/tirete...e.jsp?techid=8