Stocked a pond with a low density (25/acre) of pure florida fingerlings in an established pond with no bass present. Stocked first week of June 2" in October they were 11" and nearly a pound (very fat) by the follwing April 2.2 lbs. I would guess the fish you are seeing are the Florida bass and that is growth I would expect if managed properly. Also sounds like they may have been trained on fed so that would only aid in their growth.

Greg Grimes
www.lakework.com