Got my kfl+ today. I'm completely in love with it!
Set it up with a 1.5 ohm,29ga microcoil and cotton. Has worked perfectly for me since i started using it 5 hours ago.
No burn taste,no leaks,lots of vapour and taste,and most of all no flooding or gurgling.
I've been using the protank1(?) for many months,and been generally happy with it, it would flood when it was getting low on juice,and when i had been outside in the cold and coming back inside.
None of that on the kfl+! Was out in -10 degrees,coming back inside,still works flawlessly. Can't say yet whether it will gurgle when it gets low on juice..Haven't read any reports of that happening.
Currently using it on the lavatube,as im waiting on the provari that should be in my hands on Monday! Christmas came early for me this year.
Low on juice with a KF will never produce gurgling, at least that's what I've been experiencing in mine. It's when I put more juice that gurgling begins. I let it sit for a while without using it, then the gurgling is minimize until it stops, most likely it gets absorbed by the wick. But just yesterday I changed the coil, after cleaning the dissembled pieces and it's been vaping beautifully. No gurgling.