has anyone replaced their adjustable suspension struts yet? I have 140,000 miles on mine. I'm not getting the typical bouncing or floating on the highway. But I'm not getting good tire wear at all. Last set of Cooper Zeons I got 17,000 miles and I ran them too long. Current set of Coopers has 11,000 and fronts are toast, backs are less than half. Thinking my tire wear may be being caused by worn struts?