I appreciate to some senior vaper, comfirm me one thing...... if I use CR's protected with an 2.8 to 3 ohms atty, like noahstudios do, which works in ALPHA.....with these Protected RC's, i already can Drip more safely in ALPHA, right?
I wouldn't say "more" safely because the BB is just as safe. All of Chad's PVs are the best quality mods. In materials, components and manufacture. They don't leak. If you drip it isn't going to leak into the battery compartment through the connector. If you just drenched it down the sides then it might get in the battery compartment through the switch or through the switch mechanism in the Alpha. NOTE: e-juice is basically non-conductive. It will not cause a short by itself. It's not really corrosive either over the long term. The detrimental effect of leaking juice into things would be gumming them up and making mechanical things stick. If you got the switch on a BB all gummed up it might stick on. If you got the top of an Alpha all gummed up it might stick on. No difference there.
With respect to stacking batteries and vaping at 6v they are identical. There are some additional risks inherent with stacking batteries -- in any application. If you are using Li-Ion batteries and they are protected with a quality protection circuit (it's built into the battery itself) you minimize those risks.
Does that help? (is that what you were asking?)
Those green protected CR2's Noah linked to may be the same ones I used. Mine were green, protected, from Madvapes, but weren't branded with "Trustfire". They may have been different. On mine, if I used any atty less than 3.0 ohms it would trip the protection circuit in the batteries. They were operating as designed. 3.2 ohm, 901 attys or KR808D carts were perfect for my preference. Later batches came in with about 1/2 of them under 3.0 ohms and were unusable with my BB at 6v. Fortunately I also had/have a SB in which I was using stacked, protected, CR123s which had a higher max discharge rate and so a higher cutoff on the PCB. It's entirely possible those Trustfire's have a slightly higher discharge rate cutoff on the PCBs used in them. I would probably test them with something like a Joye 510 atty which run about 2.2 ohms and make sure they disconnect properly. Madvapes should be able to get the specs for those batteries from Trustfire. You're interested in the maximum discharge rate they're speced for. The PCB should cutoff at or before that.
With 6v through 3.0 ohms you're drawing 2 Amps
With 6v through 2.2 ohms you're drawing 2.73 Amps