I agree with the riders not liking the tilted seating angle so for temporary relief, (I have my seat in the higher setting) I cut off approximately 5/16” of the rear seat supports to get the seat a little more balanced front to back. It now sets down in the frame tabs better and doesn’t move side to side as it did before.
Definitely makes a difference and helps until I get a new seat.
do you happen to have pictures of what this looks like where you cut?