Been making oil since the 1970's. Never bought anything from a disp., if you know what I mean? When disp. opened in 1997, they didn't even know what it was, and they didn't want it. Ha Ha Ha. The first place to carry it was the SPARC in San Fran. He was a good friend of mine and ended up busted by the feds. and running to Canada. But ever since can't make it fast enough. I'm not on the oil thread because I don't like giving advice on butane extraction. That's just me though. Thanks again. Peace.......