I have been doing lots of research on the provided method of yours, and my conclusions are mixed. i beleieve what you doing does convert the cannbidiol to thc, but there has been no direct correlation between thc and how "high" you get. It is also said that the other cannaboids in the plant, cbn, cbc, cbd, all attribute to different mental states. the cannabis community seems to agree that THC, found highest in sativas traditionaly, creates a euphoric high and not so much couchlock. so if this is the desired effect of the oil, yes isomerizing would be a way to get more of the high feeling. where as if left alone and the other cannaboids that remain would theoreticaly get you more stoned, the indica way. i don't know if everyone gets what i'm saying but to me there is a big difference in a sativa, thc rich high, where the plant doesn't produce the same cannboids as an indica, which gives you that couchlock stone. so in conclusion i believe this extra process does have its benefits if your one to favor a a high "high", but counter productive if your trying to achieve a heavy "stone".
i think you'd be interested in THC acetate.