I too have had a similar problem- TAG Leopard- Mg Yellows- finally decided that if I could get inside tire to set down quicker, it would help. Tightened the rear bumper and bar- better. Made axle stiffeners out of PVC, for a quick ck, problem gone. Little stiffer axle now, and like what I feel. I’m not real smart, so listen closer to these other guys!