For Coho, not sure how well this works on Kings I'd beef up the gear for them though. Try 2 small corkies, with a piece of yarn tied to the leader above the corkies, this will keep them from sliding up the leader in the slow fall water. I normally use light colors, like pink and pearl and peach. with white or green yarn. I use about 30" leader and 2/0 gammies normally 10lb Ultragreen.If it's really clear lighten up your leader. And remember, if you can see the fish, they can see you. When I was a kid I used to ambush coho from behind trees and through brush. Maintain a low profile, I've even resorted to belly crawling. you might look funny, but it does work and I think worth it.