Greg :

With the lower fecundity rate of HBG I think that a combo of HSB and SMB will control the limited # of HBG offspring. Stock them (HBG) according to normal or lower recommendations. Also the adult HBG will prey on the HBG offspring.

It will be a put and take fishery. Put them in grow them and catch them out. During that time period also catch and take out HSB and SMB and when the numbers get low re-stock.

Greg the comment by Dave was about SMB controlling regular BG which I agree with when stocked in normal numbers .