Back in the mid 1980's I was an active member of a homebrew club organized by a British ex-pat. At one meeting he brought along some "strange" UK brews, among which was a set of short fat wide-mouth 10oz bottles of T&R Theakston's Old Peculier from Masham -- Original Yorkshire Ale. Mmmm. That brew was wonderful. Tasted like chewing malted barley almost. Rich, thick, creamy with a nice hop but a really profound maltiness.
I have since bought Old Peclulier over here, and had it many times in Yorkshire both from Theakston's and S&N, and even in the Theakston pub in Masham around the corner from the Black Sheep visitor center. It has never tasted as good since that brew-club meeting. Never as malty and thick and wonderful.
Don't mistake me. OP is still a great brew, cask-conditioned or bottled. But it's never been the same since.
Sorry, just a fond memory. You see I just ran across that old bottle today and it brought me back to that evening tasting in Charlotte North Carolina. Great memories. Great ale.