Ah well I've just done it again, blown £48 by registering Atty with British Dressage.
It will cost me a further £75 to get him assessed but that should be worth it as due to his age they give him 350 points! Since we can't do any size of circle on the left rein I'm thinking that's a little excessive so hoping assessors may knock a few points off
Still have my very old bottle of Taittinger waiting for that first elusive pint, 10+ years and counting!