Craig,
Just my $0.02:
Targeting Chinook from shore is usually a frustrating exercise in futility. There are, however, those very special moments when the planets are all in proper alignment and Poseiden graces the shorebound fly angler pursuing Coho with an incidental hookup. Chinook will get up into the shallows in search of food usually at locations around kelp beds located near sudden, steep drop-offs into deep water and during periods of low light. During the period some refer to as the holding period, the shorebound fly angler (and boating fly angler as well) has the best chance of targeting them in the various estuaries as they mill about prior to entering their respective natal rivers. They don't feed as aggressively then as they will now, however. FWIW, I've caught several when wading around the Puyallup River Estuary in the South Sound later in the year as well several while wading off the beach at Point Fosdick...but that has been over the past several years. From a boat, its an entirely different ballgame. Though I've been targeting them from my boat (locating them on the depth sounder, getting the line on down to them etc.) I haven't caught one yet this year. I did catch 4 last year, however.
In a previous thread on this board about sinking lines, Capt. Tom Wolf mentioned casting to sighted fish in the shallows and the adrenaline rush associated with the take. Maybe he can provide some better input/advice if he sees this topic. I'm still trying to break the code and learn how to effectively fly fish for them myself. Counting down while the line sinks is getting to be a real pain.
Sorry 'bout this, but I've got to ask to satisfy my curiosity: are you the same Craig Depaolo that somewhat recently worked for Orvis?
Greg