Supple suspension, in warm weather. 2015 Axys Switchback, 7,800 miles. Shocks massaged by Hygear. Doing maintenance, climb aboard. WOW, the rear suspension really moves, and nicely! In the cold weather, not so much. Where to look, address? I put the rear arm bushings in from crazy last year, there was no binding there to begin with but now better tolerance. I would imagine the cross shafts get grimy, or not? Looking for known problem areas.