I have many hours on this guitar, also.
(I don't hang on to ones I don't play, except project guitars, then off they go!)
Mahogany of some sort, set neck, locking tuners.
The bridge setup looks like a triple hum, but it is actually a dual/single in one frame.
Brushed aluminum control cover.
Mojo switch. Somehow it's setup to phase on both pickup sets.
The neck pup is "creamy", like SRV "Cold Shot".
It sounds great when driving hard, Judas Priest, or soft, jazz/blues.
I've never bothered trying to use the trem. Glenn Tipton
based his model on this one. Also the Steve Stevens was similar.
The Prototype was built for Andy Summers of the Police, and this became the production model.