For those asking about Mugello's grass, I did a real quick ext_config for the track if you want to try it. I used graveltrap's fixes for the grass spawning and made a few other adjustments. Here's what will happen.
The grass will get a little greener in the summer and slightly darker. It will also be a little higher when trimmed but won't get as high when fully grown in. Also, the fall trees won't be as vibrant. There is also two included cm skins that aren't really required, but I had done them before and figured I would include them. One removes the purple groove line and skid marks and makes them black (they probably should be darker) and the other adds a tiny bit of negative exposure offset to the tree and grass textures. I might try and replace some of the billboards and flags unless someone knows of a track skin that has that done already. Would appreciate a link.
Mugello ext_config
Suggestions for improvements are always welcome.