I believe the scare began with the first clones, when the insulators were pathetic... like slicing through butter type of insulators, totally worthless. The insulators on most clones are safer material now. Even so, one has to be sure that the positive post is slightly bumped out and not touching the rim of the negative base surrounding it. Fighting polarities and all that stuff. One doesn't have to consider those factors with the typical just plug and play storebought attys. Also, folks are used to buying their attys in Standard resistance, yet when they coil their own attys, they don't know what they're getting unless, of course, they have an OHM reader and/or a VV mod with readouts. Therefore, it's not recommended for the eGo type batteries, UNLESS one knows their resistance, knows about negative/positive etc... Other than that, yep, they work fine, especially at 2.4OHM or thereabouts. I use my Mini DID D-14 on the Spinner and Twist quite often, and it performs just like any other battery holder. When go somewhere where I'd never be able to recover it if I should set it down and misplace it, I use the VivaNovaV2.
Should a beginner use an RBA on an eGo? NO WAY!!!
why?
1. They don't know their OHMS, Resistance, Amps, etc..
2. They're not set up with ohm meter readers of any kind.
3. They're still getting used to what the regular store bought attys/cartos/clearomizers are.