Thanks for the picture of the guts, saves me lifting the pickguard on mine!
Can I just make a clarification? In my NBD thread, I said that some Neutrik right angle jacks gave me bother then went into further detail showing the change in design over the 20 years between the old one (which didn't fit properly) and the newer one (which fit absolutely fine). Whoops, forgot to check the muting Neutrik jack I have on my "posh" lead. Will check that and report back.
Of course it's not a massive job to replace the cup with a plate, just annoying. I do like the look of the cup though, very clean and tidy looking.