Worth remembering that the reduction of speed to 250 below 10 is not just to facilitate ATC. It also has a safety reason i.e. if you have a bird strike at 300kts at 5000ft your windscreen will shatter and you will end up wearing the bird in question. It can ruin your day and that of your pax. High speed at low level is not a good idea and there is plenty of documentary evidence to support that.