The reason the dolly's don't taste good is probably because you are keeping them right after they spawn (Dec,Jan) when they are just like a downriver steelhead, which don't taste very good either. I release all dolly's now because they are native, but ate one I caught in Oct years ago, which was good though still mild like a trout. By the way I saw a dolly caught by another fisherman in the upper Skagit last year that was 9lbs.