Something that gets overlooked sometimes is the rear trailing arm bushes. If they are worn out they can have a big impact on how the car handles.
After refreshing all the above I still felt this weird shimmy from the rear any time I hit an imperfection in a corner. It's been diagnosed as a worn rear trailing arm bush.
It's not the easiest thing to get at but well worth changing and maybe add some trailing arm bush limiters as well to minimise wear going forward.
@TriggerFish have you mounted these yet? in this thread@r3vmatch mentions that you need to make a notch in the plates to clear the roof support bracket. Based on the pics and some AI help I made a rough template to make the notch in advance. Haven’t tried it yet myself, use at your own risk!
I think you can make the notch only in about half the thickness of the plate, it should clear by the look of the pics. I have Rogue rear top mounts ready to go in, and these have the reinforcement plate integrated.