When you say hybrid bass you do mean hybrid sripers right? Some people will say hybrid bass or hybrid largemouth bass in reference to the F1 florida x nortern largemouth crossbreed.

If you do mean hybrid sripers (white bass x striped bass) than you definatly want to feed them pellet feed. In many areas the growing season is long enough to grow them 2 pounds per year. They can be grown over 10 pounds with ample food supply and the world record is 27. If 2 1/2 pounds is big enough for you than you could probly stock them at a much higher rate than the usual 30 per acre. Since they are open water feeders and cannot ambush prey in heavy cover near as well as LMB I would reccomend not putting in a whole lot of cover (if any)for your bluegill. This way the stripers will be able to thin the bluegill population enough for them to reach large sizes.
So if you feed them like hogs, in five years you could have about 30 7-10 pound stripers. Since they won't spawn, the ones from the same stocking should be about the same size and as a general rule the more you stock the smaller they will be.
-Scott

Take great care of it, or let someone else have it.