Friday MAN-YHM is on a 737-800 from July, with tech stop at Keflavik both ways.
757 is flying the Dub/Shannon on Fridays and then operates the LGW and MAN flights to YHM on the other six days.
GLA-YHM is 737 every day except for Fridays when the flight is cancelled to free up the 737 for the Manchester op.