Pennine Boy:
No worries then just a short hop over to Prestwick to have the cactus treatment up the rear with nav charges and handling fees
I'm guessing you didn't go to Prestwick Flight Centre then? Reasonable prices there and they tell ATC they're handling you so no hassles.
As regards HIAL inflexibility, an indemnity for all HIAL airfields except Barra can be had for a small fee. Can't find it on their website but I'm sure a phone call would locate it.
NS