Treat early extension as a response
Porzak says early extension is not necessarily the root flaw, but often an athletic response to an earlier flaw. If setup does not create fixed points to swing underneath rather than around, the golfer is already in a position to come out of it. He says to check setup first, then takeaway, then what happens to the top before chasing the early-extension symptom.
Channel: PorzakGolf
Watch official source at 20:09