Phoenix loft behaviour TWS/PD STT

[AvroLanc]

Is there an up to date reference for how the aim-54 decides to loft. 

This seems to be out of date? Or is it?

Ive seen PD-STT not lofting at 20nm, when the guidance below suggests it should only fly direct when within 10nm.

Is PD STT lofting range dependent behaviour more complicated than just <10nm?

This is with the C variant.