1.
Solipsis, I honestly don't remember where I read about intrinsic activity of 1P-LSD at 5HT2
A; I read it somewhere more specific but anecdotally think about that IIRC something like less than 50% of it actually metablizes to LSD and the experience doesn't line up with being ½ a dose, as far as I've read (I've never tried 1P-LSD), and that there seem to be some subjective differences in it's effects that's hard to explain by just metabolism, even the differing duration, if it were being metabolized into LSD (let us remember that the vast majority of LSD leaves the system very soon after taking it and a long time before the trip peaks let alone finishes) it wouldn't matter that much, plus a few other quirks, but again, I'm just going on what I've read.
2.
zikzak, I know next to nothing about vapes and some of the terminology here is new to me. I still would emphatically only trust it for a single dose, not to store doss for repeated use, and I wonder what the purpose of doing it with what looks like essentially a classic bulb MA pipe crossed with some weird alchemical machinery and costs about ten times as much, rather than the much simpler and more elegant solution of using a simple bulb. If you're worrying about wasting drugs you just have to learn how to slide the pipe back and forth and apply appropriate amounts of heat at the same time. It's a fairly easy thing to do. All the machinery seems like overkill. What drugs do you usually do with all of this stuff anyway (you said not marijuana?) I like things simple though.
You mentioned DMT, though,zikzak, and that's really not relevant here. If people have had success in smoking DMT thru this method, and they probably have and do, then that's well and good, but the doses of 5-MeO-DMT are at a minimum an order of magnitude less, which means you have much, much less margin for error. I prefer to smoke DMT in a crack pipe (actually, a sort of take off on a crack pipe, much larger, the stem of a clear glass bong set up with the choreboy and everything just like a crackpipe and the deemsters put on top and smoked just like hard), and, just like the hard, the DMT will start to saturate the chore and give you an extra hit or to. This is fine with DMT. This is
not fine with 5-MeO-DMT, when you want to be careful with doses. I just don't see any benefit to using these elaborate devices and I see a lot of risk. (I am familiar with basic marijuana vaporizers, just applying heat to the weed and vaporizing out the psychoactive compounds,and have used one before, although I haven't smoked pot in years, and don't like it, Ihad a hit off one of the ones with the bags and it was pretty damn strong. And this is better for you than smoking as I understand and that makes sense. But all of this talk of e-pens and nails and stuff seems a little over-the-top, I don't know what's wrong with sticking with regular paraphenalia

but in all seriousness these novel sorts of ways of administering drugs may be fine with weed or hash or whatever but
not with potent RCs. That's asking for serious trouble. I know people do it, I know people have even done fentanyl this way, which is asking to die; you're only asking for a psychological death trip, but please, in the name of harm reduction, keep things simple. When I shoot dope I could set up an IV catheter and hang a bag of saline and then inject the dope into the Leur-Lock port and then flush it with more saline, but nobody does that, it's a bit overkill, isn't it? Or more to your point, should I take a gram of fentanyl and dissolve it into the saline and let it just drip drip drip into me? Asking for disaster. Same ballpark. Keep things simple. A bulb pipe is the best RoA for this drug.