Bearcat does 109 get precleared? I thought USCBP were shut by then - might not be as attractive as the early service.
Any likelihood of an SNN-SEN-SNN rotation to feed 111/135 (flights arr SNN 0600 / dep SNN 1240)? Not as attractive as DUB given the 4w/3w split between JFK/BOS but might give the ability to route SEN-US pax via SNN one way or the other if the US-DUB or DUB-US services happened to be busy and thus cheaper seats no longer available.