Tom,
Very surprisingly, when I just called HP Motorsports, they told me this was the first time they've heard my particular complaint about the rear of the car getting really bound up.
They said it sounds like the control arm bolts were torqued down with the car raised but the axle not supported and that the proper way to do it is to put all the weight on the axle so it's at ride height, loosen the bolts and re-torque them.
Does that make sense to you?
I'm going to MAM in a couple of weeks and planning to take both cars. Figure I can at least give this a shot (will also retorque the lower control arms in this position) and can also bring the tools to remove one of the control arms and remount the sway bar to try that out too. The way bar won't go back in unless the car starts pushing more than normal. I'm used to it pushing to some extent and prefer it that way. It's so loose now, it really hates trailbraking, which I love doing, and which the Subaru has taught me to do very aggressively.
BTW, I instructed in a Porsche 911C4S this past weekend. What a car!!! Even got to drive it a few laps.
The owner and I really hit it off and when I mentioned I've got a 91 Mustang, he told me he's a good person for me to know because he happens to own a sizable (125 employees according to what I could find on the internet) wholesale auto parts outfit about half an hour away.
