That makes sense. I've changed the layers as you suggested. As for the hedges overlapping other layers: most of the time I put the hegdes close to the roads. As far as the engine is concerned it retains the speed that the road provides and it also retains the limited los that comes from the hedges. So for me that is a win-win. Yeah, I'm filling most of the patches with bocage (former field) layer. Yet some patches I leave open. So there would be just hedges with a base layer in it. This is just to give some variety. As completely plastering the map with bocage would also not be realistic, nor would it make for an enjoyable scenario.