Sounds great, point 4. You alreadt to a good job, so anything that enhances that and reduces stack times has to be good. The only thing I can see, is that the computers will become so accurate, but pilots won't! For instance this will rely on '160 to 4', but obviously the exact time that people slow down varies - some start to slow down at 4, others at 5 etc.
This also leads onto your other question - I don't take too much notice of the wind UNLESS there is a tailwind, then the alrm bells start ringing and we try to slow it up and get down ASAP, as they can really screw you up. So, we will generally slow up a bit before 4 dme if we have a tailwind. If you could accurately give AIR miles to run, that would be brilliant! That would make things far easier.