Nice product vapeman24... what's your vac purging process please ?
My Vac process is basically this:
1) Run butane
2) Place dish into 125F-135F bath to purge all liquid butane (I leave it in there for about 10-20 minutes popping as many bubbles as I can as they come up)
THIS NEXT STEP IS EXTREMELY DANGEROUS IF YOU DON'T HAVE COMMON SENSE. THIS HAS THE POTENTIAL TO KILL YOU IF YOU DON'T PURGE THE OIL ENOUGH PRIOR TO THIS STEP.
3) Place dish into oven set at 145F for about 15-20 minutes to purge as well as get the oil and the dish to the same temperature. There is a very precise viscosity I look for in the oil prior to vacuum purging.
4) Place entire dish into vacuum chamber and vacuum for about 1-2 minutes (-29hg). Once bubbles stop popping, I stop the vacuum.
5) Place back into oven to get warm for another 10-20 minutes which completes the purge and gets oil viscous enough to scrape off the dish. There should be absolutely no bubbles in the oil, even microscopic, if done correctly.
Keep in mind I average about 3-4 grams per dish. Unfortunately I don't have a heated vacuum chamber, so I must heat prior to vacuuming and it's a race against time before the oil get too hard to release the butane. Once you get to bout 5-6 grams you will need to reheat the dish and probably vacuum a second time to get the remaining butane out. It varies like anything else, but you get the idea. My chamber is large enough to fit 4 dishes vertically, but I haven't been able to fashion or find a rack that would fit inside my chamber.