My issue is the draw on tanks including the kayfun even with larger holes (I have 4 of those and none of which are satisfying to me now that I have used drippers with larger holes for air. I like a airy draw for lung hits and I just have not found it yet in a tank.
I want to have a tank on hand for convienance.
I had the the same problem.
I'm happy to say this is my favorite tank.
It has the airiest draw I have found. it's the only tank I have not removed the adjustment screws from.
I'm using Rayon in a pair of 28G coils at .9 ohm and love this tank.
Put this on a 26650 battery and you can leave the house for a day or more!
and the drip tip looks great on a 26650 TOHB Atty