I recently got a 61 Custom that's mostly original but has pat# p/us in place of the original PAFs which were removed sometime in the past 49 years. It's a wonderful guitar to play and sounds as good as any PAF-equipped Gibson I've ever heard, but I seem to remember reading somewhere that the Custom had the middle and bridge p/u wired out of phase in factory spec. I have a 2006 VOS Custom 61 re-issue which was supplied with out of phase mid and bridge from the factory, so that seems to back this idea up. Does anyone know for sure? The original brochure refers to something like 'middle and bridge combined for extra top end and special effects', which may be an oblique way of saying 'it's out of phase in this position.' The original 61 is way better than the re-issue, by the way.