DL-
I was fishing with a "slime line" which is a clear line that sinks very slowly. It only gets the fly about 3 inches under the surface if you are stripping.
If I had a full sinking line I would have used it for the Kings but a floater would have worked just fine for the silvers as I could see them on the surface.
I was using an 8 wt which was just right for the kings and probably a little much for 6 pound coho.
At first i just trolled the fly with good results but then I started casting to the visible silvers and working my way right along the rips that had all the bait. I was in the ocean off of tatoosh on a bearing of 210. just watch for the birds and bait, the salmon will be there.