how interesting it would be to know how Sam does his tec?
good point, but hey, who cares if he wants to keep his big secret, it's threads like this that will advance the knowledge and eventually make it happen...then somewhere, someone who has the knowledge will post it for all to use ..... until then, if purity is your aim, hours work is too hard and you'd be happy with mostly resin heads then (as you probably already know) just work plant material very, very gently so only 10% of the resin is released, then re-sift that 10% over the correct meshes with smaller and smaller openings to purify it with a Bubblebox, a Bubbleman set of four Dry Sifting screens or a Tumble Now machine to a level of purity that makes you go "Wow" when you hit it...it won't be as good as Bubbleman's dry sift but I bet every smoker you lay it on will never forget how good it is!
the set of four dry sifting screens (the top screen is stainless steel) $125
The Bubble Box...the original multi-screen frame box, now only $200
The Tumble Now..the only dry sifting tumbler with an additional flat 70 micron screen for refining $350