Personally I wouldn't stock Blues in a pond. I have seen what they have done to two of mine. Basically when I took over control of the ponds, all they had in them where a few big Blues and some GSF. The big ones get harder and harder to catch as time goes by, and they are ferocious eaters. I would stick to CC and manage aggressively. Avoid the temptation to stock at "suggested" rates and be more conservative.