I keep eaters up to about 10-15 pounds for channels and blues when Im fishing for food. I release almost all flatheads regardless of size. Just a personal choice but I release all fish over 15 pounds.. I catch all I need(and I eat a lot) under that size so releasing the big ones dosnt hurt me a bitI fish Tville for them. Excellent lake for cats & can usually catch all you want. 99% of the time I catch & release. Great fun!!