I dove Ginnie Springs yesterday with the new reg. I had the xs alt air on it. Thank God I didn't need to use it because that thing was terrible. I don't know if the alt air is just junk or if I have a defective one - but I won't be diving with this octo again. Even the octo on my friend's ancient scubapro mk7 is far superior. In fact it's the first regulator or or octo I've used that I didn't like.