Josh,
Your original post did include BG in the plan, so I wouldn't stress too much if you accidentally got them in your mix. If it was my pond, I think I would keep tweaking the stockings until I was positive that my fish population mix was a disaster.
I think you need to put in SMB when they are of a size NOT to eat your stocked YP. I think you need to work primarily on getting your YP established, since the BG are much more robust spawners.
How big are your YP now, and how big are the SMB available for stocking? (I don't know the correct size ratio for your YP to be safe, but if you list the info I bet you can get an expert reply.)
P.S. I think that BG are a lot more prolific in warm southern ponds. However, even if your SMB can't keep up with the BG population, in a pond as small as yours you can cull a lot of BG with some small hooks and bits of worms!
