0.4 AoA will give you the best range regardless of IAS.
Can someone confirm that for us or elaborate a bit. It's been so many years since I looked at my aero's stuff that I've forgotten but it does sound right to me that there will be a min drag AOA that you can immediately set up on the EHSI.
I like the idea of putting a 5nm fix off the runway and a certain height on it (say 200/ 2500ft) and then sticking to that profile and start configuring like mad as you get to 5nm. This would only work of course if you were approaching the airport from the right direction and with enough height. This is quite likely though as there are often suitable airports underneath you somewhere well within glide range.
Can someone with access to a sim try 200kts/2500ft at 5nm to touch down and see what happens?
Framer.