I didn't know there were much in the way of Irish cup and ring stuff. (no surprise there) The bullaun as development of earlier tradition still gets me intrigued especially with those vertical wotsits in Northumberland, the Copt Howe jobby and an alleged extra large cup at Roughting Linn.
Which reminds me to say that the above ref'd pic of Andrew f's at Roughting Linn is a very nice pic of a very nice stone.