Been reading the last few months of your posts Pheonix, and others support and comments. You're experience going all the way for four plus months is important. I do worry some about what happens once I bust through and reboot. Handling the last stages of the climb have to be pretty hairy.
On the drinking thing, I myself quit last summer...for lots of reasons. After the first 20 days or so I was amazed at how much more under control my emotions were and how much easier it was to talk with family and friends without becoming emotionally invested in every little thing I was saying. :-\
The other piece to quitting was being able to sleep. Shit, that was amazing! For years I would drink to be able to sleep ("sleep") and wake up in the middle of the night and have a very hard time falling back asleep. A good 3 - 4 nights a week my mind would be grinding away in a frenzy about work, kids, marriage, etc. I'd get up and work for a couple hours and even used to drink more to get myself back to sleep (I know a lot of guys use M of some kind, but that never worked for me).
The main thing I wanted to share is that I don't know if I could ever fully get out of the PMO thing without having quit drinking first. So, the fact that you're doing it the other way around is both very interesting and awesome as hell.
Keep it up, man! For me who never really liked sweet drinks after I turned 16, Coke, root beer, Dr. Pepper, and ginger ale are my new cravings. Just one a night and then herb tea after dinner. WooHoo! I feel like a man! 8)