stocking baitfish into a bass heavy pond is tricky business. If you are not careful everything you stock will be eaten up. gizzard shad are great in the right situation, and that situation is a pond with bigger bass. I think I would hold off on stocking gizzard shad until you start to see consistant 5 pound fish. The reson is a small gizzard shad will grow too large for a 12 inch bass very quickly.

I have had good sucess stocking 3-6 inch bluegill at a rate of 250 per acre. keep in mind that is after a year or two of heavy electrofishing to remove stunted bass.