Brian,
Keep at it. Especially on the Wallace. That can be some skinny water for silvers. Another technique to try is maribou jigs in pink or a lead head jig with a pink squid skirt 2 1/2" long. Of course you need water atleast 4' for this. Also make sure you are fishing them silvers from the lowest railroad bridge upto the railroad bridge below hwy 2. If you fish them and retain one below the lowest rr bridge you are fishing the Skykomish. Got that from both of the local gamies and you will be ticketed if caught. Don't want that.

Good luck and tight lines!

Oscar