Samsonian,First of all Welcome Aboard!!!One thing to think about when putting out "structure' on a Reservoir is: Drawdown,and if this will affect where you put it.Here that"s a big thing.Right now for me to put it where the water would be normally 10-20 ft., in alot of places it would be on bare ground now!If the coves constantly hold deep water i"d say there a good bet,the crappie should be there.