I enjoyed a putter fitting at Tour X in Wigan (not local, I understand).

they offer the Odyssey range, and all in all I was a little underwhelmed with it. They only worked on the way the ball rolled and adjusted the lie angle if necessary.
I know a few folk that have been to the Titleist Fitting centre for a Scotty Cameron and this is a far superior and in depth service.
Grip Size, weights, shape of head etc.