Waldo, I was wondering if you could share your .stl for the mounts for the madone. I am looking to modify the garmin mount to add on an attachment for and ION light and 3d print it
on my printer.

I am looking for the same thing zack is looking for. you are right the gopro mount style might be the best choice, but we would need a gopro shoe mount for the bontrager light to adapt it together.