My main complaint is on the GA the backrest sits too far back from the riders position to provide support, I have the adjustment all the way out and the backrest doesn’t contact my lower back unless I lean backwards into it. The portion of the backrest that goes under the seat made contact with both of my side covers and scratched both badly. The mounting screws provided also did not fit properly and continued to pull out of the seat. The instructions provided were for a B model and not a GA. Which resulted in the wrong mounting position being drilled and then discovering the instructions were wrong. Not HAPPY AT ALL. Complete waste of $500 plus dollars