@dojo - the standard RSO dosage is 1 gram of RSO per day for 90 days. from personal experience with gf, you need to work up to that dosage - she started with about .25g per day. normally done sublingual (under the tongue), but the RSO i made for her would stick to the teeth. i like to dissolve the RSO in a little bit of butter and put it on bread. the fat is useful to get the RSO past the breakdown in the liver.
vaping doesn't deliver enough dose - really need to flood the body systemically.
at least that's how i read the information available online.
oh, and i use a decarboxylator (Nova - check the FC thread) and Everclear (ethanol), rather than Naptha (petroleum derived) and a rice cooker. i do small batches (1/3 oz), Rick does a pound of herb at a time.