Sold all my T3s and MT3s as soon as they hit my supply box. The heads were too bulky and tough to rebuild without using forceps. I kept the Evods because they look a lot nicer and are easy to rebuild. The Protank will behave the same as the Evod. Gurgling issues are due to several factors and unfortunately are a risk with this type of BCC. Thickness (or thinness rather) of juice, liquid level in the tank, the removal (or not) of the top flavor wick(s), and how hard you draw all play a part in potential flooding issues. I think I have it down.
Here's a silly little vid about combating gurgling issues with the Protank and other Kanger BCC
A roll of tissue paper does just fine whenever I have any gurgling - no napkins or paper towels, dang things are expensive! Just yer standard, Government issue TP - good fer all paper work in yer vape space. I've got the last of the Dragon's Fire in a T3 and the other half of the rest in a Vivi Nova (for comparison) and it's getting down to the last .04 ml - not a gurgle heard the whole tank.
In my honest opinion, (IMHO for those millennium kids) the gurgling, or most of it, mainly comes from condensation and not over wicking, because most of it occurs in the last quarter of the tank. Think about it now. You've been vaping away for who knows how long on that 3ml T3 and with the longer distance between the coil and the mouth piece, you have more space for that juice to cool down. As it cools down, it wants to go back to its natural state - a liquid! Now, I've noticed, especially if I'm chain vaping, that I'll inadvertently pause or even blow back ever so slightly while chain vaping, causing vapor to get trapped inside the tank and also the airflow tube (some will even blow out the air vents at the base - kinda cool to watch, but...). Even if you're not chain vaping there are times when you stop drawing in air before the vapor is completely drawn from the tube. As that vapor sits in the tube, what does it do? Right, it turns back into liquid!!!
So, a simi-work-around to gurgling may be to change the way you draw on the T3's or any atty. Release the power button a split second or three before you stop drawing in air. That way you reduce the amount of vapor left in the tank or tube, or cartomizer, or atty, etc., etc. thus reducing the amount of condensation which in the long run, reduces the amount of gurgling. My
