My
As long as the tank is reasonably well made, I don't think it factors in
to how well it works. The carto used and your particular juice are the main factors.
The carto that came with my Liquinator worked fine. The only leaking I had, I think
was caused by temp variations between inside and outside. ( over 90 degrees outside )
Then I put a DC carto in that didn't seem to get wet enough no matter how big I made
the slot. It didn't seem to wick all the way up.
Now the smoktech comes out with a flanged DC carto with only a pinhole in it that seems
to work for most, even with thick juices.
Mind you, if the tank is poorly made or sized improperly for a good seal, it'll cause problems.
But, unless you got Bubba making them out back with a hacksaw and a hand drill,
they are a fairly simple design. Other than a couple of variations, they are all basically the
same. I say focus on the carto and juice.
My preference is the Phat tank from Vaporescence. It is a perfect fit for the Silver Bullet.