While I will not know the exact pressure to use on the tires until I get weighed, I can tell you this. The tire max pressure rating is 120#. When I first drove it, it had 110# all the way around. The wag was bad. I dropped the fronts to 110 and the rears to 95. No noticeable difference. Then I tried 95 and 85 since this is the lightest of the DynaQuest models, but it still did the wag.
The bushings will definitely get inspected on both the panhard (track) bar and the stabilizer (sway, anti-roll) bar. Bad bushing would sure cause this problem.