For those of you concerned about $... This stuff grows on trees! Literally! You make your own beer why not uhhh, never mind...
I just used the trim anyway, which I got for free (trim is not a flavor you would want in a beer by the way)... Put an ounce in some bourbon (or any sort of booze you desire) for a couple months to extract the desired chemical, then fake a bourbon barrel stout with the dose of bourbon ... Absolutely DO NOT BOIL IT IN THE WORT! The heat extraction technique will only work if you boil it in the bourbon but I would just soak it in the bourbon. The cousin is only extracted into alcohol or fat (like when you make butter for the brownies), since there's no alcohol in the wort it will not work at all, you'll actually just destroy the THC.


