My next improvement to my Lava Bronze Rt is the seating. Does Ultimate offer any seating material other than black? My RT now has the tan seat and I really like the color vs the all black. I know they're both great seating manufactures and I'd like to make my mind up here soon. I've seen corbin seats on motorcycles before and they looked and felt very comfortable. After riding numerous hours the stock seat just is very uncomfortable to myself and my wife. Also, is the backrest worth the extra 250.00