I do know the answers to these questions. Email me directly and I can help. I am the owner of a golf facility here in the Austin Area. I have played all theses courses and can provide insight, if you'd like. Full disclosure here, my primary business I devote my time to is real estate. I've lived in the Austin Metro since 1985.
Are you aa golfer? We have great golf here in Austin both private and membership. Our biggest difference you'll see is in the grass on the greens. "Tiff Eagle" is the dominant grass around here. It is a much better strain of Bermuda than those from the recent past. The only courses that have "Bent Grass" are ACC and one you didn't mention Cliff Side, which is out west on Hwy 71 W. It sits on the banks of Lake Travis on the south side.
Bill Austin ~ firstname.lastname@example.org