After tinkering for many months, I finally managed to get the reentry autopilot functioning - albeit in a fairly clunky way.
Its a bit of a roller-coaster ride, going from 1g - 2.5g with a 3g bump when it transitions from Reentry mode to Skydive mode.
Use BaseApproachMFD or IMFD "BaseApproach" to target reentry interface at:
120km alt.
1.5deg reentry angle
45deg anterior angle
It can handle reentry from 200km-500km LEO, with 50T payload max.
It now switches to Skydive mode between 15km-20km alt. automatically.
If anyone wants to try it out, a "patch" .zip with new .dll's is attached to this post.
Also includes new Starship mesh with some small cosmetic changes.
The "Tanker" variant still does not include reentry autopilot.
I'm just doing some modelling work on "Mechazilla", so will put a proper update on OH later.
Cheers,
Brian