Thanks Bruce - that is the same info Bill posted - the Childers study. See Bill's post WRT its limited source. What I posted is much newer than that. In the newer studies they did have F-2s in all the ponds that were stocked with only LMB and/or F-1 HBG which were mBG X fGSF crosses. FWIW there have been maybe 30 studies on HBG/Lepomis since Childers. They are interesting but at odds on some points.