Hybrid striped bass had crossed my mind as an option because of the open water nature of the lake, but I was unaware that they were illegal in VA. Would golden shiners be a better option as a forage fish in a lake lacking structure than bluegill? I'm pretty sure that they'd be easier for trout to eat, I've never heard of trout eating bluegill although I'm sure it happens to some extent.
According to the owner it has dried up two times, I think he's owned it for 20-30 years. I've read about RAS's on here and that's something I'd really like to try to grow out a few larger specimens. I suppose I could use it to hold some young of the year fish if the lake looked like it was going to dry out, but I'm not sure if I'd have the capacity to hold enough to make a difference or not.
