I found a 2010 PBF thread on rock bass and GSF. Interesting stuff, especially about the GSF. I had never read anything good about GSF before. It seems that some people really like them - more than any other fish. Between rock bass and warmouth, it looks to me like warmoth are a little better choice for a farm pond. They get bigger, aren't as demanding or water quality, and will hit flies. Some people have reported that they are hard fighters, and others said they hardly fight at all. So...?