Man there are a million ways to skin a cat aye?
In the sim I mucked around with it a bit and found that 4000ft aal, green dot, clean at 10nm, no wind , worked well. How you get there is going to depend on the day, it may well be more appropriate to go overhead. I configured late but can't remember if I did it with alternate or by swapping APU gens.
The idea of configuring early is, in my opinion, a bad one.