There were a lot of stone flies around and I saw one March Brown mayfly but not a fish rising. We fished some stone fly nymphs but the fly of the day was clearly the Fire Fly again... Effective and easy to tie.... you gotta love a fly like that... Maybe I'll do a step-by-step on my blog..... Here's a tip for you John.... tie this fly on a size #12 TMC2457 Scud hook.... make sure you use a 6/0 Solid Orange (translucent orange if not solid would be my second choice) glass bead not metal and run it off the back of your old rubber legs nymph about 12-16 inches back... If there are rainbows around look out they love this thing, even more than the browns do.... Enjoy...