Take this for what it costs you.

My basic strategy on reservoirs if to fish either along steep drops (they are even better if the creek/river bed bends into it) or on flats next to or just off of cover. I also stick around mid lake. I've never done that well very shallow or in the deepest areas on man made lakes like this.
About any place that has stumps or stake beds could hold crappies on a lake like that but I'd stick to the middle of the lake.
I think nearly as important as where is when. It has always seemed to me that you can catch crappies near cover on flats all day but those travelling steep drop offs or between cover bite best in the early morning or evening.
Good luck,
Tim