I was looking at BAA Glasgow website and came accross this for flights to SFB from Glasgow
03-Apr - 2 - - - - - 09:00 15:25 GSM725 763 Non-Stop 11:25 hrs.
29-Mar - 2 - 4 - 6 - 09:30 13:30 GSM725 738 Non-Stop 9:00 hrs.
05-Apr
26-May - - - 4 - 6 - 09:30 13:30 GSM725 738 Non-Stop 9:00 hrs.
27-May 1 -3 4 5 6 7 09:30 13:30 GSM725 738 Non-Stop 9:00 hrs.
either it seems that BAA have got it totally wrong.not just the fact that 738 can't fly GLA - SFB non stop, or GSM are going to use the 738 more on this route