Knowing Stone and Mitch, I don't think it is an all chinook beer, either. Which especially makes sense when Jamil and Tasty blended in crystal malt extracts with Stone IPA. Their reasoning is that it has the same hop flavor profile? Which I agree with, but when you look at
http://www.stonebrew.com/ipa/ they list the hops for Stone IPA as columbus, chinook, and centennial. So, why did they not mention changing the hops in the rebrew show. Just a statement I found confusing. To me the chinooks are too dominant and conflicting, but when I did my version of the clone and subbed out half of the chinook for centennials, and dry hopped I thought it was much closer to the Arrogant Bastard in hop flavor and aroma when I did a side-by-side. I have yet to do the rebrew with only 10% Special B, so maybe that makes a difference. I doubt it. I believe my attempt was a percenatge of C-60L, Special B, and chocolate for color. Much closer to clone than my original attempt with all chinook. Just my opinion.