If BA wishes to keep flights as domestic arrival at JFK choices seem to be:
1) Re-time BA3 to early morning, say 10:00 to arrive JFK 14:30, with BA1 departure remaining 12:50 arriving JFK at 17:15 or
2) Re-time BA3 to closer to BA1 12:50 departure, say 11:00 arriving JFK at 15:30
Current openning hours of DUB CBP do not allow for a LCY departure later than current 12:50.
Will BA go for more time in London or earlier arrival in NYC ?