I agree, though I find that beer takes a little too long. Nothing beats a bottle of scotch and two or three tequila shots when you just want to cut those shakes down a bit. And it has the side benefit of making those K6os look pretty damned good...kinda like the girls all getting prettier as the night wears on at the bar.
Seriously, though...I firmly believe drinking while you're playing is suicidal. THAT SAID, I don't think a SINGLE drink before play is necessarily a bad idea--unless its the first drink you've had since prom night and you weigh 85 pounds soaking wet. The calming effect outweighs any (should be minimal) impairment of the judgement, I find.
Or a quaalude or two before play. That does it, too.