I think that this FR base is a bit of sitting on the hedge as FR and STN are not on best of terms so they could and probably will give STN a very quick kick to say you raise the charges and this is what we will do, BHX is close enough to hurt STN as a large chunk of its pax are from the midlands
A couple of interesting things to watch in the near future are STN pax figures
and also if FR lower the number of flights from STN for the summer over last year
Ian