If you'd really like to catch some silvers run that boat up to Neah Bay or Seiku or take it down to Illwaco. You'll catch silvers till your arms are sore - no kidding - 20 - 50 fish days. That might be too obvious but the number 1 rule of catching salmon is to fish where the fish are. As more silvers start moving into the sound they'll show up first at Hein or Coyote Banks, Bush point, Point no Point/Skunk Bay, Skatchet Head, Possesion Bar and then on down into the areas you're already fishing. With as much boat as you have you've got a lot of options open to you where you can slam 'em instead of working so hard for a few local coho.

Seriously a trip to Neah or Seiku is really good for the fishing ego and will be a great way to break that boat in. Good Luck!