This dilemma happened to my grandfather yesterday on the Sol Duc and a fish checker was right there to see this fish and said that he would keep it because its a hatchery that had the wrong fin clipped as a smolt. All fins were intact perfectly he said, but the Dorsal was kinda rounded off and there were only 7 or 8 rays on the fin and there should be 12 or more! It was your typical 6 pound brat-sized hen, Chrome to the bone too and the only fish checked on the Sol Duc yesterday. Needless to say, he kept it. It was his first keeper salmon or steelhead he has caught with me in all the years I have been fishing with him. I got stiffed the whole day and only lost one. Glad to see gramps come out on top this time, on one of my streams even ( he lives on the other side of the big pond)! Chris