Right, let's have another go then................
eyeinthesky- unfortunately, everything we do is regulated by the Campaign Against Aviation, and these nice chaps just love to jump on the poor overworked ATCO when something goes wrong (whether it's the ATCO's fault or not). Therfore, we indulge in a favourite hobby of ours, it's called 'back-covering'. Thus the reason why we say "........you may experience some glide path fluctuations......." Just cos a pilot claims he's visual, doesn't mean he's not got one eye on the G/P indications. We just have to legislate for the lowest common denominator (you know the sort, pilots who moan about traffic in the circuit being too close, despite being in class D and being passed the appropriate tfc info).
brain fade - "just saying that a lot of clearances are repeated. Any denials?"
No, I'm not denying it, but as I said above, we have to legislate for the lowest common denominator, which, quite often, can be the 'professional' smartie tube drivers rather than the ppl students.
DD - which airport is it that has the threshold elevation on their Pamos? Am I right in saying it's Edinburgh?