Good thread. (Creeping) I was listening to my old J45 the other day and noticing improvement it it's sound. Since I've been playing it more the last two years. It may be I've come to love it's sound. But the occasional comment from others makes me feel it is improving.
Back on topic: One note on the classical guitar thing. In the late sixties, maybe before Willie got his Martin(?), he used to take my now deceased friend, Dave Parker on the road with him. Dave played country music (and, separately, flamenco) on a classical guitar. He had a great touch and the guitar a great tone. His guitar was a Rubio, I think.