To my understanding, Mystacalis and Purpurescens are now generally regarded as the same fish, a CNBG? I think I remember reading where there was a question as to parts of Florida producing a slightly different looking CNBG, hence the subspecies differential.

Now, I see the names used interchangeably quite often.

"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.