I'm no expert but 4-HO-DMT and psilocin are one and the same, and psilocybin gets metabolized into psilocin after ingestion.
This thread delves into vaporizing psilocin:
http://www.dmt-nexus.me/....aspx?g=posts&t=7043*************************
Salvinorin A I believe needs rather high tempreatures to be released, so I'd guess vaporizing won't work.
But here's a thread:
http://www.dmt-nexus.me/...aspx?g=posts&t=24815*************************
In this thread the vaporizing of mescalin is mentioned:
Quote:A friend was discussing other ROA for mescaline which led to the vaporizing mescaline. It was done about when the first dose should have kicked in so any increase in effects at that time may not be a consequence of vaporizing.
http://www.dmt-nexus.me/...aspx?g=posts&t=24620**************************
5-MEO I haven't any experience with, but I'm guessing it's possible.
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More knowledgeable people; please correct me where wrong.