Marty - I have been trying to establish just what we are seeing in my ASF4, in terms of NZ scenery.
As I thought the airfields are the conversions from the AFS2 FSCloudport ones. They have a distinctive 'look' which you can see in this pic of Whenuapai. The misalignment is produced by errors in the original FSC file.

After clearing some duplicate files, I took a run from Welly up to PP and discovered this horror. I posted an AFS2 screenie which showed it, so it probably pre-dates the GeoffKiwi mesh add-on. I was surprised to see it rear its ugly head again in AFS4 and set that problem aside for later...


I then made a change to prove which airfields were showing, which should not have affected the mesh at all, and ran up to Para again just to check.
I found the GK mesh was now looking great:

No wonder I am getting grey and grumpy and thin on top!
ATB