Ive used the "twitching" technique for years and have had good success. Ive caught steelhead using it when they didnt want it dead drifted. Its a go-to for pinks, silvers and even chum. Havent tried it for kings but everything else likes it so so should they. The only down side is, you will snag fish if they are kegged up. For a technique thats been out for eyons, sure is getting alot of press lately.
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"I have a fair idea of what to expect from the river, and usually, because I fish it that way, the river gives me approximately what I expect of it. But sooner or later something always comes up to change the set of my ways..."
- Roderick Haig-Brown