Congratulations to the winners Ralph Meyer and Sherman Chong, and to all the other competitors. Abe and I have judged in Barista competitions both locally and nationally, and the standard here was as high or higher. Of the seven finalist, five were standouts, while two had good blends that somehow had a bad day today. John Despres gets a shout out for (in Olympic parlance), a high degree of difficulty roast - a light roasted Sumatra for SO espresso. He didn't win, but he pulled it off. Henry Chang gaves us a flat out fruit bomb and Marvin Rabinowitz, a smooth milk chocolate truffle, both of which put a smile on our faces.
Our thanks to all these really enjoyable blends. Any pro roaster in the country would be proud to put their name on something as good as these.
If you want to do an espresso taste, two technical notes jump out for doing these comparison:
1. It is incredibly easy to pull consistent shots if one dials in, records the shot weight and grind setting, and repeats these for the competition. Even where the blends went south in the two day wait from preliminaries to finals, changing the dose and grind made things worse, not better.
2. Italian espresso machines prefer making a shot every minute, balancing on the run, like a bicycle. Use the grinder waste to pull a single, wait out the minute, cleaning the group with tiny flushes during the wait, then pull the money shot.
This may not be something you want to do all the time. But if you are doing an important set of shots, it's worth considering these extra wrinkles.
Finally. If you need to grade a lot of shots, take a few tiny sips of each and chew. This "finish" will tell the story -- the great ones are clean, lively and interesting.
Here's some of Abe's photos:
Competitors 2 through 7, while 1 was being pulled:

The shot basket and the preliminary single basket

Shot number 1 pouring

And here's the result, ready to judge:
