The ProTank mini 2 doesn't have 510 threads for use on a mod. I agree that it's a great tank but having to put an AeroTank base on it doesn't do it justice.
That to me is the problem with most of the tanks - the 510 interface.
The 510 interface became popular imo because you could have started with a simple carto; then when you upgrade to a tank, as long as the tank was 510 threaded you could use your same battery.
But that 510 thread interface is just too damn unnecessarily small to hold a big tank.
screw it down too tight and you get center pin problems
often people would leave it loose on top to get better airflow
a tiny fraction of a droplet leaks down into the 510 threadwell and you get gurgling, plus some of that liquid is going to likely get down inside the electronics and cause problems eventually.
At least the aerotank base is supposed to relieve some of the problems.
Ain't it wierd how the miniprotank has the good solid 14mm base without congestion while the protank has the tiny 5mm cartomizer sized thread?