Can't say it's from any of MY personal experience but I've heard that the Crappie are getting up to good size, and in good numbers.
Currently, the fishing report is outdated by a couple of weeks, but last report was that the Crappie were being caught at night under lights, on minnows. Fishing Report | Cedar Creek Lake Outfitter's
The lake is likely "full" ... but, since it has a static drain system, it can't flood. I've seen the lake water "murky", but mostly in the main creek branches ... rarely in the wide area at the dam.
Were I going, I'd look for the thermocline ... and standing timber with brush near the base, that extended above the thermocline depth. And, if I was planning on using minnows, and would normally take 4-6doz to any other lake ... for Cedar Creek, I'd likely take closer to 10-12doz just because of the number of "other fish" that would likely want to snack on them (especially if fishing during the day, but not confined to the daytime).
I'm not suggesting any of this because of personal experience, as I've never used minnows on Cedar Creek. It's just a suggestion, based on reports I've heard/read.
... cp