Back to Gailes and Loki's query. Yes they had type 7 and type 14, which I vaguely remember came as 14 high and 14 low. They also had height finders which looked like a type 7 turned through 90º vertically and nodding rather than rotating. I'm not 100% certain of my ground here as, although I was briefly at Redbrae and Atlantic house, I never actually got inside Gailes. Incidentally did one of them not have a fairly slow rotation rate.