With most tanks, it's better to refill when you get just below half-full; otherwise, many tanks leak, gurgle, and if there isn't much juice in the tank to keep the wick well-saturated ...
Andria
I wouldn't wipe my .... with a top-coil tank, so I have no idea about those.
Andria
The great thing about using pre-punched cartos in a carto tank is you can see where the hole is.I vape until the level of juice falls just above the hole and refill.
With a quality tank with a good seal you can sometimes slide it up the carto a bit to cheat those last few drops but Ive found it easier to just refill.
lol @ Andria Im with you.I wouldnt wipe my .... with any clearotank.