ZP, When I fish for silvers just outside of the Duwamish Head, I try to stay in atleast 200' of water and fish 60' to 90' deep.. My favorite set up is, a 11" glow in the dark hot spot fasher, 36" of leader with a green spatter back hoochie.
Don't forget the herring teaser.
Glow white hoochie has been really good at times.
Good luck!