Found a problem with the Vapeonly BCC Mega. It started gurgling and was getting some juice into my mouth. Took the tip off and when I looked inside the socket for the tip I saw quite a bit of juice there, maybe one or two good drops. I cleaned it with a q tip, put the tip back on and the gurgling was much less. So, how did all that juice get up there???
I took the tip off again, cleaned the cavity and vaped without the tip. I could then feel the micro drops of sizzling juice hitting my tongue. I was vaping then at around 4.4v which caused the juice to sizzle and shoot up many tiny droplets which ended up accumulating in the drip tip socket. When enough juice piles up in there then it begins to gurgle a lot.
I cleaned the cavity again and put the drip tip back. This time I vaped at 3.3v, producing less vapor. I vaped for a while taking the tip off and looking in the cavity and noticed much less accumulation of juice. I vaped at this voltage without the tip and although I still could feel an occasional sizzling droplet hit my tongue, they were much less in frequency.
The Vapeonly seems to have a problem vaping hotter which may only be avoidable by lowering the current (i.e. voltage) to the point where the juice doesn't splatter as much up the vent tube. Unfortunately, at this lower current it doesn't vape as well.
I made a crude measurement of the depth of the drip tip well/socket using a small eyeglass screwdriver and it seems the drip tip is about 1/16 inch too short. It is in this 1/16 inch space between the bottom of the drip tip socket and the bottom of the drip tip that the juice accumulates. I'll keep playing with this to see if there is some fix. It looks like it needs a longer drip tip that will sit flush with the air vent (bottom of drip tip socket) or some kind of gasket that fills that 1/16 inch gap. I want this unit to work!!
That's it for now.
Edit: Lucky I saved the Phoenix Reborn rubber tip. This one seems to be able to go all the way in and seal around the vent tube, not 100% sure but it sure feels like it does. It is nice and snug. Will refill the tank and give it a go around and see what happens.