Cant really say i have noticed the diffrence...because i have never tried to smoke the goo
But i have a "goo Collection", most of it is Brown/blackish coloured that is the impure remains after some re-x`s that i have not managed to throw away..(i want to check if ther is more good stuff in there) I have a feeling this kind of goo would be only slightly active and probably unplesant to smoke.
But i also have some golded coloured goo i collect in a vial ,actually there was a little amount of that golden goo underneath the last x-tals i posted in this thread, and i guess its that kind of goo you refer to. So i will smoke that golden goo someday soon