This guitar was bought used by a friend about a decade ago from a GC. The neck was not right, but I don't recall why. The action was high, so he got a discount, as I recall.
He brought this to Aaron Cowles, a superb luthier from Gibson who did work for Heritage, including tap tuning. The guitar was renecked.
This is a standard H-575 but now has a maple neck and an ebony fretboard. There is binding on the headstock and a MOP Heritage inlay. The harness was resoldered due some instability. There now is no serial number on it.
It plays very well and has an old style beefy neck. It has a nice tone, too.
My friend lent it to me a couple of years ago. I'm about to return it.
It weighs 7 lb 10 oz, slightly heavier than other H-575s I've handled, about an extra 5 oz. It's built like a tank. The top is fairly thick but not to any extreme.
Before it goes, here are some pics. It is a beauty.