The thing I don't like is on my factory 4 point seatbelt the shoulder straps are hard mounted and hold me right back in the seat, which means I cannot reach the SATV flip windshield handle when the windshield is open, the shoulder straps hold me back.
I saw a guy's RzR this weekend that has retracting spools on both belts, driver and passenger, four in all. That would be good.