BTW, this means you know quite a bit more on this topic than I. Any other insights you can share?
I didn't know about the California Native Plant Society, or thepilot projects in SCal, for example.
There is a project in the Delta area where they are trying grazing, burning, and combinations thereof, and exclusion of grazing. It is one of those natural areas, I can't remember the name of it, but if I look at a map, I can probably find it. The area is SoCal is east of San Diego. The Nature Conservancy purchased a ranch, and I believe they mostly burned. Timing of the burns makes a big difference. I don't remember all of the particulars, it was several years ago since I was there. It was impressive, though. Along with the native grasses were some native wildflowers in greater abundance than would be found with the annual grasses.