We had an old saying back in the day.
"He who drinks the most, wins the most".
It really was for one of my friends who seemed to turn into Tiger Woods with each passing beer. Sober, he was around all of our skill level. But get a good 6-10 beers in him, and his golf game would get better and he became a much better golfer all around.
I shot a round with him a couple of weeks ago. He only drank 2 beers, and I easily beat him. I can pretty much guarantee if he had drank 6-10 beers, not only would he have beaten me, he probably would've gotten an ace as well. :)