anyone who thinks that kings and coho will jump all over a corky and yarn combination but needs eggs to catch a steelhead is probably a snagger.
I'm not so sure that's true, fishing is equal parts art and science and everyone has their own ideal set of circumstances and gear that they fish the most productively. Kings I have done well using pixie spoons, eggs and jigs, I prefer to use the spoons. Silvers I do well in salt trolling (I know the area I fish very well), kings I do pretty fair trolling as well. Fishing a buzz bomb for silvers or humpies either in the lower river or salt I excel at, I'm better than average fishing for both with a dick nite too. Chums you can't beat a float+jig with a piece of prawn in the river but I've caught all species on corky and yarn. Steelhead are more condition specific in my experience, bait, lure size, leader length and weight according to water speed/clarity/temperature but I fish float+jig the most productively for them.