I think we do it (sequence) wrong. Everywhere I've worked we attempt to reduce
track miles , but still give a time delay ie. the way maestro does it. If we just let them steam on in and then run extra track miles like they do in the states (simplistically put for brevity), the pilot
sees the 10 a/c ahead of him and thinks you are doing a wonderful job. Check out the 60nm finals they run at some of their busier airports. Who cares if it's less efficient? Might finally put an end to all the bitching about sequencing.