That is so weird to me, Dave. The size of the mouth, the pronounced hump/ledge on the chest, (below the index and middle fingers), the traces of blue striations on the cheeks, and the completely yellow pelvic fins all shout hybrid to me. Actually, the only thing missing is the subdued overall coloration, and I put that down to the murky water in the photos. No GSF in that pond?

I guess I will never grasp the entire copper nose identification thing.

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.