I guess for all intents and purposes Hatton already did face the optimum LWW Castillo, but that his LWW days were well beyond his prime years. Even supposing that you inserted the Castillio that weighed in over the limit in the 2nd Corrales fight in 2005 (still within 2 years of thier actual fight) I imagine the result that transpired in reality would mirrior our hypothetical result.
