Hi armchairnomad,
You need to tell us if you plan on using them in a tank. You don't need to use them in a tank and I haven't yet. I'm using them as is with just a 510 "drip tip", a piece of plastic for your mouth , instead of using the metal tube of the cartomizer. Trust me, get one for $3. I didn't like cartomizers in July when i first tryed 2 no-name ones, but i never did get to try the Boge or Smoketech because of the QC issues. So, i decided to give them another shot in Dec. and tryed the Boge from Surevapes. I liked and ordered 50 for $43. I think you should try one first before ordering 50.
I don't think you need anything extra to use in a tank, other than holes that need to be put in the carto, but im not the person to answer that for sure.