I use the Shilshole launch just because it's closer to home. No more parking (less, actually) but convenient and no ferry rollers bashing you against the dock and other boats.
Chip....I was in the islands over the weekend and fished the SW side of Henry Isl, just outside of Roche Harbor. Open Bay is the area and couldn't keep the humpies off my line.
Trolling a small green hotspot and small pink hoochie 22in back. Got it down with a small deepsix 30 pulls. When the bite cooled, a splat of herring oil is all it took to heat back up.
Great crabbing around Roche also.
PM me for more, if you want it.