But Green clay tournies could be good as a sort of transition between hard court a "real" clay for americans...it could be a good idea to have a few more of these tournaments.
Here is a short version. You know how Europe has these summer clay events? The US Open used to be on green clay, and there were parallel events, so that meant Indy, Boston, Washington and many of the lead up events were on green clay, then when the US Open changed to Decoturf, then these older events then changed the surface.
I don't miss the surface, but it's a whole lot better than synthetic grass.