kyuuei, correct me if I'm wrong and/or add on to this if you kinda/sorta agree but think it's too thin, or something.
I agree that E8 is about control. I also agree that E1 is about perfectionism. But what I've found is that the E1 need for perfection is only correlated with a desire to take charge to fix things. They only need to take charge if something is wrong and no one is doing anything to fix it. If things are going well, then there's nothing for them to improve, and they can leave it. For E8, as I understand it, there's a need to control and dominate for the sake of power -- and E1 couldn't care less about power.