Nice article. I hope to be able to go thru one of the shooting schools this year.
One thing stood out at me from the article. "Coffee was available." When I was shooting small bore 3 position competition, we weren't allowed any coffee that morning before the shoot, and the coach really frowned on us having any caffine for a day or two before the match as well. I know prone from a bipod and a bag is slightly more stable than any position we had, but every little twitch counts!
But, I think some shooters that are used to caffine would really start twitching if made to go cold turkey!