I can see some marks in your screen shot, probably an airstrip!

- can you give me the coordinates so I can visit and get a feel for what they look like at various heights?
The real fields that I've flown into around Canterbury and the Mackenzie Basin have all been a lot more obvious than that one for the distance that you appear to be at. If this is a typical example of one of their modeled strips then they are MUCH harder to see than the ones in ORBX Aussie scenery.
The ones I was looking for which prompted my question were around Lake Coleridge and they certainly aren't there as the scenery where the strips should be is scrub rather than grassy tussock (also there is a road that stops and has a bit missing in then continues on a couple of km away). So maybe some strips are modeled but it appears to me that most of the ones I'm interested in aren't.
On an aside, most of the VLC ones I flew into didn't really stand out from the surroundings, although they were green, so were the surroundings so though they were easier to see than the Aussie ORBX ones I wouldn't say that they were anywhere near obvious!
Maybe I need to rephrase my question, and ask if there is a way to make the country strips more obvious in ORBX like the ones I've seen in real life!!
I used the first shot as an example, you have to look for them. They are defined they are poly's but each texture set has its own strip textures as well... not just green.
LINZ data. NZSI matchs this trend if there is no visible strip there wont be one.
A lot of strips if you view in Google earth with the linz overlays you will find are wrong, you confirm that yourself, keep in mind that a lot of the linz vectors were drawn in by hand over low detail imagery.
This strip cant exist as it is smack bank in the middle of the Wilkin river, I have flown up that valley many a time, it just never was there.
Apples for Apples, both scenery packages used the same available data, they just used different ways of cleaning the data up.