The first charter I ever went on was out of Sandy Creek (Hamlin) on April 6th a few years ago. We didn't go deeper than 20 feet at any point but pulled in a bit of everything: one atlantic, one smallmouth and a mix of browns, steelhead, lakers, cohoe and smaller kings, boating 40 plus in six hours.
Sometimes, they're just there. I will say that our captain warned us not to take that kind of day for granted - we haven't seen one that good since.