My 13' Ultra Limited came with a (discontinued number) headset kit # 77147-98A. It seems to be designed to mount on a 3/4 or full face helmet, but I have been told that is can be used with a half helmet. I have a half helmet, and don't particularly want to buy another helmet to use with this headset. Has anyone had any luck installing this unit on a half helmet, and if so how did you do it. I know that they sell a headset that is designed to use with a half helmet, but I would like to make this one work if at all possible. I am also interested if there is a better idea!