I think this thread speaks volumes. Each of us is different, and the affects of alcohol on each of us is different.
What is different is that all of us do not have full recognition of what these affects are to us individually. Many of us do, but, not all.
On the other hand (which is the same hand,) each of us must realize this as well. Everyone else is different from me. What works for me may not work for everyone else.
The real proof is in the pudding (and the pudding is a recording.) We are not going to believe, for the most part, what someone else tells us. Do the test. Play, and drink, One drink in between every two songs. See what the affects are on your playing. Does it get better? If so what is the point of diminished returns?
Also, try the same thing with caffeine. Man, I've done this and believe it, after my second dose of caffeine I am looped. Cannot play worth a darn. My coordination is messed up and I cannot keep time to save my life. On the other hand, a few drinks loosens me up. More than this, however, I start getting sloppy and lose control of my volume...
Put up or shut up..! @
take the test and report..