Believe me, we are all thinking about your fuel burn these days and CDAs are high on the agenda, clearly we need you as much as you need us! However, as I'm sure you must be aware, the STMA is very busy at peak times and a formalised system is required to safely handle multiple arrivals to both Glasgow and Edinburgh. This inevitably results in some delay (holding, vectors for spacing, speed reductions etc) and some arrivals will fly less than optimum profiles.
Hopefully more flexibility can be introduced during off peak times, this is where I think we can make improvements, but we will always be restricted by the limitations of the airspace structure we have to work within.