Maybe make sure your wick isn't touching the part of the deck right next to the air hole creating a siphon? I read about that through my trials and tribulations. Worth a peek maybe?I have a FT B version and 2 Tobecos (SS and Black). I use a tighter draw for mouth to lung hits. I would say it's equal to an EHPro KFL+ almost wide open but with the screw still in. I find it gets gurgly or slurpy...not really sure how to describ it. It doesn't leak out the air holes just sounds kind of weasy(fairly annoying). I am trying to figure out if it's leaking. I find it hard to believe both the Tobecos are leaking and I am relatively sure that the FT is. I replaced #16 o-ring with a new buna N70 11x1.5 but still gets a decent amount of juice down to the air holes. I would try the size up like dwcraig has but it's $10 shipping to Canada from the o-ring store so not really interested in dumping any more cash and 2 more weeks of waiting into it.
So anybody have a similar air flow setting experiencing this? It's not that bad but does bug me so I figured I would see if I am alone on this. Apart from that they have been vaping well but I was hoping for less noise then my KFLs.
On another note this thread has been very helpful so that's to all who have participated.
**Also - I'm still getting nice bubbles after almost every pull like you would expect! So pumped. Haha. Loving this thing at the moment!