Russ,

I'm jumping in the middle or end of this thread and apologize for that, but I noticed you still have stocking options. Here is one for you to consider.

Stock your BG, best strain you can find and all sexes, but use all female only LMB as your predators. If you can 100% positive limit the LMB to females, then this could be better than cats as predator. LMB help grow the largest BG's I have ever seen. Plus, on occasion, your kids would get a real treat with a lunker pulling on that string. The key is to get 100% female LMB, complete assurance that no LMB are in the pond now, and protection from the introduction of any unwanted male LMB.

It won't be easy, but I'm intrigued by it and will also try this approach in a very small pond that I have. The reward is smiles on kid's faces.