At my favorite local lake there is some rip rap where spin fishermen regularly catch quite a few crappies. I'd go down there and just get a few now & then. Until today I was really puzzled by this; why should they catch so many crappies while I just get a few. It turned out the answer was right in front of me all the time if I only would have had the wit to see it. They usually fish 5 feet or more down. My main error was I wasn't getting my fly down. Today I fished a small clouser on some type II full sink line with much better results than usual.
Now watch the fish come up and I'll be fishing below them