I'd say the newest Pico for the vacopalypse stash, if that's what you are going for. I mean, the internal battery picos, you kind of don't want to leave stashed for too long. I will say I was not the biggest fan of mine, although it's a perfectly serviceable vape (at least for the price anyway) it just didn't trip my trigger. People love them so worst case, you'll be able to sell them for deep money from the Vacopalypse bunker, or vacopalypse armored van, etc. But yeah, I'd probably go with the single battery option. It was mostly the Melo III I hated (and that was with the Ccell vaperesso coils) but the board isn't the MOST efficient at converting power (I didn't do updates, though) and I also got the rainbow which is perhaps not the most lovely finish of all time.... Like, the tank's drip tip was "rough" due to the finish. I might avoid the rainbow unless it calls to you... Didn't really notice the roughness of the finish on the mod so much but the tank, yeah.
OMG, punk is out the door (another perfectly wonderful mod that I hated for the hand feel). Yeah, if I'm ever divested of all my mods, I'd be regretting that one but I'm fine, really, so that was "nice" only due to being so sick I have to rebuild my stamina apparently. Almost died at the dog park with the kid and all his erranzd we ended up "crashing" with pizza, yesterday. LOL.
But yeah, after post office, doc's office (to pick up scripts) and then Costco (for said scripts) I was pretty fried, man. It really doesn't help that it's over 90 degrees out there, which pretty much means "Summer" from now until the end of October. Sigh. I used to be cold all the time and love the heat, but then I got my thyroid looked at. I'm never cold anymore, but that might actually have some VALUE for the summer months. I'm crashing for at least an hour, before I do more useful stuff because I came home and immediately attacked: the bathrooms, bedrooms, trash and laundry.... LOL.
Anna