Pablo, after studying it for 10 minites I think you're right. The volume knob and the switch are slightly North and West of stock JS1. It's got black hat knobs and the rubber bezel around the switch so it's looks like it's even more dramatically off than they are. It's definately LA
custom shop as it has the
Joe Satriani script on the headstock. Very well be one of the first true JS1 protos.