Just spent a weekend using the gopro hd on my C2, mounted it on the spin pole where you would put your taktik, speedpuck, etc, worked amazingly well. The crew can turn it off an on easily enough (just climb out the hull), battery will last a full day if used as such.

Also played with the end of the boom to mixed results. next, and extension of the back of the boom, then the top of the mast.