AvidVaper.com just got back to me about the warnings against using certain (bridgeless) atomisers with standard batteries, stating "
the warning is old and is not really relevant anymore considering standard ego style batteries are not common. The 510 atomizers require 8-10 watts of power at a minimum to function, standard ego batteries cant output that type of wattage.
With most any new vw/vv device, even the adjustable voltage ego style batteries are not an issue anymore.
The 510 are standard 510 atomizers with 510 threading, the 501H are 901 style atomizers with 510 threading.
Without adjustable power 1.5ohm is a good resistance to use on standard 4.2v nonadjustable battery power."
@nightshard: Direct tasting of diluted flavours seems like a good first phase in sampling, especially for trying combinations. Even small doses of 1ml should provide plenty to taste on the tongue. Why milk though, rather than water?
@ScreamQueen: I've never dripped, but bridgeless atomisers seem a good second phase in sampling and I'm looking for them in the EU.
@talonz: I'm looking into it. Wouldn't rayon wicks need to be exchanged like any other to prevent cross-contamination while sampling?