I think a great deal depends upon what size fish you are adding...in the LMB thread currently on the board, those fish were 3 lbs +. If you're goal is trophy CNBG, then you will want smaller bass in place to control recruitment.

"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.