I think what FNG may be driving at is the significance of the word instructing, given that Elstree is not an ATC unit but an AFIS servcie
Yes, I understand that. It's a regularly voiced argument here and I agree with it. The rest of my post was a bit of a sarcastic aside and didn't imply that I sympathise with the way things are run there.
FNG - reading you 5 now!