thats the thing, ive never achieved muffin.
and dont take any offense to this, but I believe that the muffining is because it is severly unerpurged when youre putting it in the chamber, which is fine...youre vac purging it afterall.
ive only achieved a muffin once, and thats when I half assed boiled off the butane to try it on purpose. the oil was still 10% butane when i put it in pretty much lol.
I let my oil evap off in hot water, sometimes switching it out half ways all outside. then I bring it inside and will do the other .5% or whatever is remaining over the oven with very hot water. by then, its very purged. and warm.
if I were to put it directly into the chamber, there would be no muffins, which sucks, I think they are critical to the wax. I cant figure it out. its gotta be a sativa vs indica thing.
ALSO, the one thing my friend mentioned is that he puts his spray dish OVER a dish of hot water as he sprays so it evaporates instantly, whereas I let mine sit for the 3 or 4 cans, then cook it all off at once. could that be the difference?