Usually if steelhead opens up and hatchery harvest can be done with the release of wild steelhead then it has become "selective gear rules" in areas i have seen. Which is basically a single barbless hooks, so yes hanging onto the kings (since it is open as well) is going to be tight lines - come or bleed. My view is to let the salmon fishery end, then open steelhead. Salmon up here (rocky reach to chief joe) is open for 3-1/2 months (July to Oct 15th +-) while the steelhead goes 5 to 6 months. If they want hatchery out of the system then take them out at the dams / hatcheries.