Knowing this guy, I'd say it's pretty cool ! (and it's an awesome flat water training for nose rides, helicos, kick turns and stuff...but yeah, maybe it's better not to try it in the middle of a crowded line up !)
these gong boards are the ones im looking at they look pretty good also follow this link its a cool website with all these videos and some great photos.cheers Ian www.gong-galaxy.com/en/