Comet hops are an heirloom hop variety that was first planted in 1980. Comet was the result of a wild male hop collected from Logan Canyon, Utah, and crossed with an English hop, Sunshine. While looking up information about Comet, and then UK Sunshine hops I came across a great article from BrewingTechniques' September/October 1995 discussing the role of genealogy in hop substitutions. The article is filled with great historical tidbits about hop origin and hop name stories. I won't look at hop substitutions the same way after reading the article. At one point the article states that "96% of the US hop crop was Cluster". I guess Cluster is the original "C" hop. Understanding hop origins can go a long way towards making hop choices for substitutions and recipes.
Anyway, onto a batch of IPA brewed with a whole bunch of "C" hops. Bravo hops for bittering addition at sixty minutes. Whole leaf Comet hops at five minutes. Whole leaf Belma, Simcoe, and Comet hops at end of boil. I added the Simcoe to play off the wild hop flavor of the Comet hops. Dry hopped with Cascade, Centennial, and CTZ (pellet) hops. Basic grain bill of English pale malt, flaked wheat, honey malt, and weyermann carafoam. Mashed warm at one fifty six. Mash off to one sixty eight. Collect fourteen gallons. Boil to twelve and a quarter gallons. Pitch dry American ale yeast. Ferment. Dry hop. Dry hop, again. IPA!