WTF?! its weird......... Hank is NOTHING like his dad and bobby is a LOT like Cotton. Bobby has the same hairstyle, the same expertise with a rifle, and the same interests. Plus Cotton supports anything Bobby does and supports fairly anything Hank does, except raise bobby. So i have a few ideas, ignore the first one its really stupid but it would be a stupid plot twist
1. Bobby is Cotton's son directly. When Hank couldnt get Peggy prego Peggy went to Cotton and got some of his sperm and told Hank Bobby was his. This could be why Cotton treats Peggy like a biatch, because she got something from him and she never did anything nice for him except criticize him. Yes that is the stupid idea
2. The traits of cotton skipped a generation, which is probably the true one.