Does anyone know how long they have been stocking hybrids in Hudson and is there a fishable hybrid population there yet?

I don't know how long they have been stocking, but I have run into them from time to time. I hear some good ones come out up toward the Pensacola Dam, but the biggest I have ever caught down lake has been about 3 1/2 lb. I've never targeted them other than some night light fishing catching whites and sometimes some hybrid.