If you have good craw habitat ( rocks ,weeds and woody cover) and start them in time to reproduce before the predators get big enough to eat them then you can establish a population even in a 5-6 acre lake. It can not alone be the base , or even a major part, of the forage plan. In this case you would not want craws to fill that roll as that would reduce SMB predation on YP yoy and FHs. I would bet that as in most crowded situations a few SMB will get through the clog size (12in) and grow big.

Read those Cornwell articles. Either LMB or BG alone ( with out the other and even in combo) require more management effort than many other stocking plans. They are both great fish but you have to manage them. BSki is not inclined that direction at first and I concur with this judgment. I would also consider adding GShiners to the mix and be ready with some larger HSB and supp. SMB, if after a couple years it looks like the SMB need some help controling the forage.