I'm no scientist but I've made a lot of tincture and I've seen a 190 alcohol finish a tincture in an hour. Really after 20 minutes the vast majority of cannabinoids have been removed, literally melted into suspension of the alcohol so yes, the stronger the alcohol the quicker it removes the molecules we want. At the same time a 40% alcohol will remove most of the cannabinoids but it takes a lot longer and you also strip a lot more of the molecules you don't want like waxes and chlorophyll.
I'm in CA, the state of fucking delusions

and those MF'ers, through stupid regulations have tripped the cost of getting 190 proof alcohol. With the stroke of a fucking pen it now costs about $200 a gallon. WTF? I gotta set up a still, this is horseshit. Don't get me started