Steve,
With regard to BG, I don't think I would use them as forage with BC and HSB. I think if you do, you will find it difficult to grow the BG to harvestable size with these predators. IMHO, the GSH would be great forage for HSB and possibly better than you may presently think for the blues.
One advantage of BCP is that they should probably be less prone to stunting than BG. I think the key is to add BCP after your predators are well established. Given your predators may not reproduce (well for sure the HSB wont), you need to have a handle on laddering them to so that you are not without predation. I think most ponds with dink crappie (less than 6") got that way due to fish kills that took the predators or in some cases may have been stocked alone (eg by bucket). They cannot attain standing weights anywhere close to what BG can and a typical standing weight is probably less than 100 lbs/acre. They way I see BCP is that they are a panfish. They are no problem to clean and eat at >7" and it only takes a modest amount of predation to get them to that size by the end of a crappie's second summer. In a 1/2 acre pond, a max standing weight of > 7" crappie can be easily managed by fishing. If you really like crappie, a 1/2 acre pond cannot grow as great a weight of them as you might like to have. I think the key to succeeding with crappie is harvesting fish less than 10" without feeling disappointed.
