This post shows the progress of adding static grass to the yard and town modules. I am using a mixture of Noch, Silfor and Woodland Scenics static grass. My static grass applicator was from AliExpress, and works really well. I haven't tested any of the more expensive models from Woodland Scenics and Noch, but I'm not sure that their results would necessarily justify the increased price.
I particularly like the results of the patchy grass around the team and stockyard tracks, which are buried in the ground. The tufts don't interfer with the rolling stock and adds to the overall look of the scene.