Seems there is quite a bit going on very late at night / in the wee small hours also at the moment as the last couple of nights I've heard what sounds like a Herc or something go low over my house near Cupar Angus area. I caught sight of the strobes as it flew over the top of the house towards the Sidlaws from N to S and then turned and tracked along the hills heading SW.
Made quite a racket but certainly wouldnt make a complaint, a little bit jealous however as it looks like they were having fun....
As others have said just keep your eyes and ears open, flying in Sotland you get used to pop up fast moving traffic. Personally if something is heading my way at high speed and I'm just having a bimble I turn on all the lights and throw a couple of orbits to make myself more visable.....not much else you can do really!