I also have the motocomm helmet cam and I mounted mine to the handlebars after I tried it on my helmet. I did not like the idea of having wires hanging off me while riding. I mounted the camera on the clutch side of the bars using the universal mount that comes with the kit then ran the wire from the camera underneath the gas tank and seat to the recorder that is kept in a thin Moose tool pack that I have mounted on the rear fender. I also have the camera hot wired to the bikes battery so I don't have to buy eight new batteries every time I want to use the camera.
So far I have been very pleased with the video quality from this setup. I was afraid that there would be too much vibration but you don't see it in the videos. The viewpoint you get from the handlebar mount looks cool on video, the camera is always pointing to where you are going not just where your looking.