I've noticed that a little bit of ethanol in the blast dish seems to help loosen the patty so the butane may escape. If this fails then winterize and you will likely drop the culprits.
IR doesn't see through walls, it sees the temperatures of the exposed surfaces and one must infer what source of thermal radiation would provide such heat signature.
Weed isn't illegal. THC is. If a lab test shows THC its a controlled substance federally at least.
Knew a dude that had two pounds of ditch weed in his trunk. Busted. In court, his attorney got the charges dropped due to failure of the evidence to test positive.
Would you regret NOT going with the a-team when stuck on probation, pissing in a cup and paying for the privilege? A red card means nothing on probation you can't grow, posess or use. Jail time hanging over head and a drug conviction that would prevent one from ever working in legal Mmj.
Seems to me that with the parts you have, you may be able to grab a dewaxing column from terpp extractors and use your ends?
http://terppextractors.com
Perhaps, however just use dry ice and no denatured alcohol that could leak down into the collection vessel.
incorporate an outer layer of insulation perhaps....