A good article and interview with Ken Grossman, founder of Sierra Nevada Brewing Co in Chico California. The real pioneer of the Craft Beer industry and the first to push the envelope with big hoppy beers. Also, it’s not a coincidence that US-05 or WYeast 1056 or WL001 is called the Chico yeast. 
A Craft Brewing Legend Talks About Making America’s Most Iconic Holiday Beer (uproxx.com)
Denis