I`ve heard recordings of myself without a drop in me, recordings of me in the 'happy' zone, and recordings of me completely smashed so far into the earth I was smack dab in the center of China, and in all honesty I sound the exact same in every situation. The only real difference is that I`ll take more chances on doing some really crazy fills when I have more booze in me and it usually turns out really well. That said, do I purposely get hammered before a gig? Of course not. One beer before and another to nurse through the first set is more than enough to keep me feeling loose and will still allow me to be 100% professional in ever other regard. What this really comes down to is individuals. Some people know their limit and will play by the rules. Others will abuse it and think they can handle it. To be so black and white doesn`t seem quite fair to those who can drink and play, but I guess it`s a necessary evil if you`re playing with immature guys.