Simon at the Audio Files is indeed a top bloke.
My LP12 has now had a well-earned service and a new Benz Micro Ace L cartridge fitted, as well as a second hand Mk 1 Lingo, which replaced the Valhalla board.
As well as doing this, he took the top plate off and cleaned it for me. It gleams like a new pin!
As far as the sound is concerned, well, I'm absolutely delighted and it can only get better as the cartridge runs in.
I would definitely recommend him if you need any work done on your LP12.