>>20476
Here's another example of double-plot-cluster.
The thing with cluster pattern is that it is an unplanned, "organic" development, they built their houses where they wanted to and not according to a will higher in the social hierarchy.
Round settlements however were planned out beforehand so it should be more noticeable.

I also took screens on a third example, but I might want to draw/outline something on them and speculate about it.