Hi Maoraigh, I suppose you do get some turbulence from those hills in Scotland.
The only snag with setting the squawk first then calling, is that if you are flying in the Midlands area, you will get stepped on by two or three other aircraft, and it might be about 5 minutes before you can read-back and confirm your squawk code. Some pilots have no SA on the radio, and just key up asap.