I've only caught 2 .... one little one out on the main lake (left bank as you're going towards the dam) and one keeper (that I didn't keep) back in the back end of Little Beech. Had a guy tell me he caught several on the old roadbed back in the pocket to the right of Settlers Trace Launch Ramp ... but I didn't see them. Caught both of mine on jig/plastic, casting for Crappie.
I would think if one were targeting them ... the river end of the lake would be the place to try, but I really don't know that much about them. Luck2ya !!