I don't really get to fish Rocky for crappies as much as I would like so I don't know what to recommend for them. That one was only in about 3 ft of water ...more back in a big, shallow cove. For the cats I would hit outside weed lines close to deeper water. I know that there's plenty of channels in Rocky but not really sure about flats or blues. Last year I saw a dead channel cat that had to be 20-25 lbs along the bank there so they have some big ones but I don't think they get a lot of pressure because I hardly ever see people catfishing from a boat.
We're heading to Rocky this weekend and wouldn't mind getting into a mess of those, just got a boat this summer and not real familiar with the lake yet, ...more have any pointers for the crappie or catfish we may try both?