I´ve been working on extensor action and in the beginning I was hitting really nice shots but after a while staying with focusing on extesor action my swing felt really tense and slow, so my question is can you have too much extensor action?
Yes, I think so.
I used the analogy of a dog (right arm) running in a straight line and the leash (left arm) keeping him in check. I may be wrong but I don’t think the ‘dog’ needs to be running in place trying to escape but just have a constant and deliberate inline exertion. More like walking into a strong wind or pulling a heavy load behind you. Extensor Action snaps the left arm into being active the way a Bungee cord goes from relax to taut- not relax to double its length.