When I moved up to the North of Scotland in 2014 Aberdeen was the one place I could guarantee a decent punt that far north. Sadly the pickings are slim now, a combination of a VISA clampdown for non-Europeans, the Romanian/Gypsy flood and a collapse in oil prices have driven out virtually all the good whores. There is the odd gem about still but it is hard work booking them.
Until there is a recovery in the Oil prices I don't see the situation changing anytime soon, even worse the guys coming off rig are so desperate for a shag they are propping up the Romanian/Gypsy side of the market to everybody else detriment.