Yep, wooly buggers knock em dead in the springtime! Usually all you have to do is troll them, but when things slow, try this. Get it as deep as you can with a fast sink line, then strip and rip it to the surface as fast as you can. Oh yeah, and HOLD ON TIGHT!!! Coffeepot's rainbows are possessed or something! Various bloodworms and chironimids also work well in the shallows.