RBC,
Absolutely stock bluegill. They are the backbone of the food chain for largemouth bass. Do it, soon, or your bass(and hybrid sunfish) will be so far ahead, bluegill won't be able to catch up quickly.
Here's the problem. Hybrid bluegill don't reproduce adequately to support largemouth bass. Being a true hybrid, they aren't supposed to spawn at all. But, some do (and they can't possibly reproduce as they are, so you wind up with inferior fish anyway). Either way, hybrids cannot support bass, and ultimately compete with them. Hybrids have larger mouths, and are predator fish. Bluegill, on the other hand, have tiny mouths, and reproduce several times yearly, probably twice where you live. Their babies feed your bass.
Find a reputable hatchery which can supply bluegill at least 4" long.
