We flew around Scotland in May last year, from Perth to Aberdeen to Kirkwall to Oban and back Sarf again. I fear we got a bit confused with Scot Inf. Is there just the one frequency?
I understood there were more than one, to be used as transmission conditions allow - can't remember the details now, but somewhere around Inverness we were invited the freecall Scot Inf, and then as reception deteriorated, we were given a different freq.
Sorry my memory about this isn't better, so I can't give more details. I do remember calling Scottish Mil at one point, got rather a perplexed response from them...