Call me a kid, if you want....but I have a new toy and I like it. I built this test tank with mostly scrap materials laying around, but I really dig it. For me there is a lot to take in as a tier. The biggest thing, is the effect increased or heavy flow has on the way a fly will swim. Next to being a fish catcher, the way the fly swims has got to be the most important aspect of fly fishing (subsurface). Here are a couple of videos of recent test runs.....enjoy and expect to see more in the future.