I have been doing well with rainbows this season with small shiners along the edge of weedbeds in 8 to 12 feet of water. Not typical for rainbows, but that is where I am finding them. I use very small shiners with 4 pound fluorocarbon. Try molding powerbait around the split shot above the shiner. The scent and color will attract them and they will hit the shiner. Trust me the powerbait trick works. I also feel the powerbait helps with brood stock salmon also.