Here's the catch though, some grasses are simply greener than others. I've played Harding Park and Pebble in California when they were "Augusta green" and both were plenty firm. Not St. Andrews or Bandon firm, but plenty firm enough for a very enjoyable round. Same with any number of courses in the South, though bermuda is not as green as the rye or poa or whatever they have as turf in Cali. "Firm and Fast" does not always mean brown, some grasses are simply really green in color if they are healthy. And in truth, type in a google search for pictures of Bandon Dunes, those pictures show some rather green grass. Green isn't bad.