Hello fellow fender experts. I have a question for you. I have a 69 and a 72 fender precision bass, I have heard that the finish after 68 was poly. Is that 100% true? As the lacquer on 2 of my basses seem to be original and very thin. I thought that from 74 fender started to use he thick poly finishes on fenders. Correct me if I am wrong. Or maybe from 68-74 fender used some super thin poly finish?