Try any of your standard baitfish patterns, Candlefish, Herring etc. buy some Rainys Popper heads and slide them down infront of your fly, and go to work. Try different retrieves, I some times tell people to find a good beat (Reggae, Waltz, Blues Etc) silvers do alot of following and changing up the retrieve can entice them to strike.

Matt
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Yes sir you are a fine angler, the wind is a problem. - Scott O'Donnel