I live in an apartment. Butane is out of the question, even if I were willing to put in a lab hood. I was toying with the idea of making some bubble hash for a while, but as I remember from (way) earlier in this thread, there's so much plant particulate left that it clogs the ceramic and requires frequent cleaning. Maybe I'll look into ISO extraction to see what's involved, but I'm really liking Pure Gold, and from what I've read about the company, they do a good job. Better than I could ever do.
Not much of a hardship for me to visit my friend in LA every once and a while, and bring back a gallon or two...
An update on my having too much fun with my new dart. As always, I've read all the instructions and decided to do it my way. Since the dart nub isn't being used by me with my thin vials of PG (rather OFs hot needle method), I put the dart away and just use an extended delrin mouthpiece. I tried my ptfe shorty, but it's a little too close to the rev core for my lips liking. Tried it with and without a UFO in the end of the mouthpiece; can't discern any difference.
The SV revo with PG is like a go cart or an old lotus elan. Instant response. I've taken to loading the ceramic with two BIG drops, turning the heater on for five seconds, which causes the PG to be absorbed, then dropping two more BIG drops on the ceramic, and heating it again just long enough for the PG to be absorbed. This is what I am thinking of as "a load". Might be able to put another two BIG drops in, but I haven't tried, and I believe OF when he says more than four is courting disappointment.
So with a fresh load of batteries, which last mostly forever compared to using them to vape botanicals, I can get eight brain damaging hits out of one load. And since a whole preheat-inhale-smile cycle only takes maybe 30 seconds, one set of batteries is good for many, many loads. And because the cycle is so short, and the effects of PG are so strong, you take less hits "in a row", and it doesn't get hot like the T1/Evo does. Wheee!
Now I gotta figure out how to modify one of my extra Evo Delrin Insulating Sleeves to cover the Dart version of the Revo core. Say that 5 times fast.