I run a C & C solo with the backrest too. I've got over 60,000 on it and it still looks and feels as good as ever. I've ridden 15 hour days with it and I can tell you my butt is not the body part that screams. Very happy and would buy from them again in a minute. Plus, Chuy (the other "C") rides a roadie. Sorry, can't help you with any experience regarding the passenger pillion.