Well, I've dug through everything I could find and still never found a definitive match. I agree that there is a lot of GSF showing in those fish, and I like the identification of the fish Scott is holding as a RES X GSF hybrid.
The more recent fish may be the same, just washed out due to colder temps. I think I see some cheek mottling indicative of a RES influence, but other RES markers are scarce....or at least obscured by the GSF contribution.
I also like the sound of the HBG(BG/GSF)x RES idea. Those fish present the appearance of what I THINK that combination might look like...if such a pairing could even provide viable, surviving offspring.
I'll say it again...whatever they are, they are tremendous! I would love to catch those!
