Shannon also retains twice daily transatlantic service from Aer Lingus, as well as Delta, United and American. Prestwick lost that market to GLA 26 years ago and it is never coming back. Shannon also has a thrice daily LHR connection, so whilst not being in the same league as DUB, it pootles along.
PIK remains a money pit.
And yes, can the mods merge with existing thread?