dan,
you right, the delux is tops. I dont use the pressure guage, or the laser temp, but I do use pure(r) tane, costing only 200 bucks, rather than the delux addition of 500. I have the delux, and dont regret it. the special valves for safety is worth it. the unit is on a scale for checking contents, and the butane will stop flowing (audible) when it compresses the air in the recovery tank, which is frozen, to keep the tane in a liquid state. I keep the bleeder open slightly during the 1 hour recovery to let the air excape, but the tane is liquid at the bottom.
all this math...geesh. all four of the hormones you'll ever need are available already to go, and diluted perfectly for "dropper" measurements for a few dollars. I could never reinvent that wheel! good going nitro....my heads imploding now trying to comprehend the numbers, not sure why, but addictive
caroline is a very nice person at kitchen culture, but she dont root marijuana either. all the supplies are there, but no mj mixes, so at least we can have fun with our begonias and lillies!!