Have any of you had any experience using the quick descent dubbing (I think it's actually aluminum fibers)? I got a sample pack from our fly shop to try and was told you need to put some squirrel dubbing in with it. Tied up a couple of flies with it but haven't had much chance to use them yet. Mike Birdsong had the Fly of the Week on FAOL last week with this stuff. It's kinda interesting.