Quote Originally Posted by 2.reefrat  View Original Post
The Hollis BOV has a retaining lip on the tube that is not continuous all the way around the tube and appears to be thinner/lower profile than any of my regulators or VDH DSV. I don't know why Hollis did this because I would imagine that it is going to be harder to get a seal and be less secure, both things that are pretty important on this item?
I will pick up a Poseidon Mk7 mouthpiece next month in Florida and see if that helps.
I agree, why they designed it like that is a mystery. The only bad thing about the BOV