I like to use marabou flies for salmon. One favorite is Jack Gartsides' soft hackle streamer. I believe it is in the fly of the week archives. I have found no advantage to one color over another so i have settled on bright colored flies that are easier for me to follow in the water. I don't weight the streamers but use split shot a couple of feet above the fly. I think marabou flies should move as freely as possible to take full advantage of their inherent liveliness. I have also just had a request to tie some #6 stoneflies for the upcoming salmon run from a new aquaintence who fishes the same water I do so I may have to try a few myself.
I can think of few acts more selfish than refusing a vaccination.