013 is curious to me. Larger mouth, striations on cheeks, light fin bordering, some GSF in the mix somewhere? The general body dynamics and smaller opercular do tend to favor a RES, but the pecs are pretty wide and relatively short. I yield to Bruce however, he's the pro.

I think it's a mutt.

"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.