I wouldn't worry too much, my first run at CC was a couple years ago, and they didn't come up for pellets until the next year, but when they did finally start hitting, they chowed down! I stocked 30 this spring, 8-10 inchers, and still have not seen them at the pellets yet, I feed at the same time every day. If I were to guess I think they tend to stay on the bottom until they get some size to them when they finally get brave enough to roll the surface, or if they deplete all other food types that are available near the bottom.
