We always worked on a 3 degree profile but nearly always found ourselves getting in the way of boeing/buses on the same route invariably 2/4000 feet below us at the same cruise speed. Invariably we ended up getting vectored all over the place to make room for the pax jets that would hinder our descent. Anyway over the three years or so we have been operating the thing we have refined our descent FPA to 3.7 degrees, this gives us a TOD at the same point that most of the commercial transports do which give us a more or less Throttles Closed CDA, we can be 305 knots at the beginning of the descent with TL's closed and end up at 270 @ Fl100 which works well with our 270 restriction a through FL80.
Up until recently I've always been a 3x ALT + 10 kind of bloke, however our avionics are very good (Honeywell Epic) and frustratingly on our particular type it generally does a good job.
In the transition to becoming a child of the magenta one of the factors was the 160kg we saved per sector in doing so, saving the operation £15-20k per year in fuel.
Nothings carved in stone though and the Geneva/Barcelona turn ins can show anybody up all down to experience and being more cunning than those Damn Air Trafickers
Ollycopter whats the birdstrike Airspeed figure through FL80 you need to make in a 750