I was very close to get me the gopro surf hero hd for this xmas but in the last minute I decided to do something wise: check for feedback....turns out these cameras don't seem to be so great for us freedivers and spearos (focus problems, blury image) so I went for the aeris f10...yet I keep hearing a few good feedbacks on some of the cameras....what's your experience and recommendations out there? I still feel like I wanna get it but not sure, if it doesn't work underwater then what's the purpose for us?