No secret on Greers. That's a huge recreational lake and can be quite busy with pleasure boats. It's a little over 3 hours for me so I don't fish it much in the summer. You might want to check the Arkansas Game and Fish Commission website and look at the fishing reports. You will find it in there.
Greers is a clear water lake and if I were you, I'd be looking to fish the north end of the lake where the water is not gin clear.