I have banked, or boated plenty of true slaty, tidewater Chinook in AK of all places on 10, and 12 pound leader. Many, many in excess of 50 real pounds. Not those pictures of 40 inch fish...We're talking 5 foot, 60 or so pound fish... Salty Coho require more, as they are a much more aggressive fighter, with the rolls, and crests. But still the fish that will come into Tilly, and similar are in no way "large" fish. They require no more than 15 pound leaders. And wait until you run 12 lb. lo-vis leaders on a hot day of Chinook fishing in the bays...You will retract the statement that the fish are not line shy for sure. Horsing a fish is far more damaging to it, than wearing it out and playing it to the boat. The fish is not able to properly orient its body when baing yanked from the water, rather than played. Fish tire a lot quicker when they run up the rivers in low water. Thy do know hoe to rest. So even if you play a fish for an hour, and have to release it, it will surely live if you don't mis-treat it, unless you just let it side plane against the current, and slowly pulled it in to the boat/bank completely sideways with your 50 lb. braid, and 25 lb. leaders. Not so great for the longevitity of the fishery. I dunno, a lot of people are afraid of using light leaders...Buy a bunch of high quality leader lines, and do some testing. If one seems more resilient, and tougher than the rest...Sufix Siege. Stick with it. I run 6-8 lb. leaders for the spooky E.C. Coho, and I can pull the big keepers(40+ inches and 15 pounds) up onto the bank at full rod deflection with 8 lb. Siege. The liughter you go, the more fun you have catching fish. Using lighter gear will also drastically improve you fish playing abilities. I dunno, use what you feel comfortable with, as that is the only way you will catch any fish. But try other stuff out there as well. Angling gear in this day 'n age is pretty tech. Especially lines, and leaders, lots of moeney goes into the design of the stuff on the shelves.