ps: my 2 cents, i think (for no scientific reason) the problem is the poor visibilty, i've seldom had luck on the cowlitz when the water is not clear... i did see where you said the water fluctuations is causing some problems, is that becasuse the big shots of water discolor the river or something else? i'm thinking that the increase/decrease in water flow shouldn't be any worse than the way natural rain causes the river to fluctuate or maybe i'm all wet on that..