One of the best guides on the "Holy Water" is a guy by the name of Clay Butler. He can be contacted thru the Amanda Park store. They also have a list of guides and phone numbers for that river. The fact that the pictures of fish you saw did not have clipped fins does not mean that the fish were natives as the hatchery on Cook Creek doesn't clip fins or at least they didn't. Anyway you don't have to keep any fish if you don't want to, at least with Clay we didn't and we were out for the full day, sunup to sundown. Was the best day steelheading ever, 29 fish to the boat and several fish over #20 on. Best of luck.
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"Even if you are on the right track, you'll get run over if you just sit there." Will Rogers