Full face helmets and cameras

[R1 GTR]

I'm looking for a new helemt and like the thought of a full face one. I like the 661 designs like this.

But I also have a helmet cam that is mounted by straps threaded through the vents. This isn't a problem with the open face style I currently have, but has anyone tried mounting a camera to a helmet like this? Looks like it might be more of a problem?

[vwsurfbum]

My strap goes long enough to go round the back then under the peak,
and yes i know i have my bike helmet on whilst snowboarding!

[R1 GTR]

Will have to check the straps, might work!