To piggy back on Todd's recent comment, there seems to be a lot of trouble grasping the concept that sharing covers all WA fisheries.
When the first US-Canada Treaty was signed the PS Tribes were threatening what was called the "All-Citizen" suit. In it, catch in ALL US fisheries would count which means the AK fisheries might not only take all the NI share but might cut into the Indian Share. In that case, AK would have to be responsive to the needs of WA. They, as I recall, were refusing to support the Treaty unless the suit was dropped.
If memory serves, the suit was not fully dropped but the Tribes agreed to hold off if WA gave them full Co-Management authority. Bill Wilkerson thought it was a good idea.