I asked this on the main forum, but with my memory it probably won't come out the same. What does the fly, a Royal Wulff look like to a feeding trout. I fish a high mountain lake here in Montana. It takes a 4X4 to get in there. it's about 14 miles off the beaten path. I started out fishing with this fly and it just killed them. I tried several other flies, but the Royal Wulff was the ticket. I now have plenty of those flies in one of my many fly boxes.