This weekend, I had the Shelby out on the highway enroute to a mini-meet. At one point, I downshifted from 5th to 4th to pass. After the downshift, I hammered the throttle. I could hear the blower whine, but I was not near redline. Then I hit a piece of uneven pavement, and while the car was under power, the rear end hopped. It may have moved laterally a couple of inches, although it felt like a lot more than that. Has anyone else exerienced this? After the crash in my GT (caused by a skittish rear end), I'm getting very leery of the Mustang rear suspension. Will a Watts link help?