Jim:
They keep adding length to Pinehurst and to Shinnecock for championship play, so a couple of holes on each have gotten out of that realm. But Pinehurst still has its third and thirteenth holes, and Shinnecock has #8 and #13.
Those are probably the weakest examples of all the courses rated as 10's: St. Andrews, Dornoch, Muirfield, Pine Valley, Merion, National, Crystal Downs, Cypress Point, Royal Melbourne are all loaded in that category, and Ballybunion is no slouch.