Norm,
I'm convinced there is a lot about HBG that we do not know. Each different cross (and backcross) from GSF, BG, and RES male/female may indeed represent different behavior patterns including spawning.
Much (perhaps most all) of the standard complaints about HBG may very well be due to breaking one of the cardinal HBG rules such as never stock HBG with BG. That coupled with the bias commonly seen against these fish and reputations can be established with questionable science behind them.
I've learned a few things in my small experiment with HBG, but most of all have learned how little I know about these interesting fish.
