randompost, IMO this is all a combo of the subconscious work of Naltrexone, and the conscious effort of your "self." I've been on and off this website for four years now and it's common for people to go on and on about how "hmm, my numbers are not decreasing" as though they were speaking of something out of their control (e.g. "I'm taking this cholesterol pill, but my numbers are not decreasing."). Each "number" you add is a conscious choice -- I get that, at some level, it's not a "choice" because of the addiction, but still.
Naltrexone is a powerful tool to help YOU quit drinking, or dramatically decrease your drinking. It dramatically decreases the power of "the Beast" (that inner power that seems to control you vis-à-vis alcohol or drugs):
http://www.rationalrecovery.orgTo answer your question from my experience, my normal number of drinks prior to TSM was about 7-12 beers or shots. I never one time drank more than 3 drinks on Naltrexone.
RE: "concerted effort" That's a personal decision. I've known people who do the opposite, that is, make a concerted effort to drink more units on Naltrexone with the idea being that each drink will provide that much more "extinction." One guy would force himself to drink his favorite drink each night, even when he didn't want to. Others, like myself, required little effort because the drug was so powerful on my mind. My goal was always 100% abstinence.