I just updated the last post, of mines. You might want to take a look at it. I'm won't be able to answer your floating valve issue, as to I don't have any problem with mines. Set it and go. I'm aiming for 5-6 months on a full filled paintball tank 20z and 24oz. There was an updated on 11/11 (Low 700ish psi) a few pages back, at the moment it's still holding strong at above 600ish psi.
She winks, Let's dance.