Sooner lake is a power generation lake which recycles water and pushes out warm water thus it's good lake during the winter.
There are Crappie in it but it's been several years since I fished it. We were after winter hybrids and the channel that returns the warm water draws the shad up there.
I would think that the crappie would follow the shad. There was a lot of standing timer in the lake in some areas. It's definitely worth a try when it gets cold.
Kaw lake has always been a good fishing lake and I have heard lots of Crappie stories but never fished it myself... I would definitely make a run at it though.
Also tons of arrowheads found below the dam when the water is down... so keep your eyes peeled when fishing it you could find them around the waters edge as well.
Good fishing
Crappie Beater
Just another Oklahoma Crappie addict !