After mainly targeting targeting steelhead over the years, I'm planning on giving chinooks a shot this fall. I did give it a try some years ago and after a dozen trips or so, finally landed a 20 pounder on a two ball tomcat drifted off a float. A short time after this I had another one on but lost it. The pattern is found in one of, or maybe even both of, Rick Kustich's books on salmonids in the great lakes. All it is really is two large glo bugs side by side. I tied it on a #2 hook.
This fall, though, I want to try swinging flies. I'll probably try more realistic rather than attractor patterns and experiment with large clouser minnows. I'll take some guidelines from an Autumn 2005 issue of Fish & Fly which also gives some patterns.