Sparky I tried to divide HBG into 2 types in the HBG pic thread. That simple combo attempt (some shaped like BG , some shaped like GSF) seemed to have merit but quickly delved into a big I don't know. In the process I learned just how little was known about lepomis hybrids. Dave Willis and I even made a few calls to the scientists who did some of the genetic research on BG , RES etc and hybrids -- they didn't have any answers either. Looks like we are all in the same boat.