Thanks MMB. He had mentioned that they are a bittering hop, but I didn't know what AA they were. The cones appear fairly small relative to the ones that I grow in my back yard (Cascade, Chinook and Wilamette). I am not sure what grower he got them from but the Prosser area is loaded with hops.
I talked with him again tonight and he said that they are only a couple of years old to the market which makes me think they may be slightly different than what was released in 1996. Not real sure. Anyway, thanks again. The 15% number is certainly good to know.