I would say my main type is always there influencing things, since I prefer to think logically about things before taking an action. If I'm pressed for time or action my 'mean' type by your definition takes over, but I'm also just as likely to come to a 'emotional' decision through the use of logic. I don't think your question itself works though, since I don't consider your definitions a valid way of defining things and I would consider that (like all aspects of my personality) I am influenced by everything at all points.