With the mention of "smell" by Jim Wallace when talking about the surfers wax, an entirely different subject/concern comes to mind. With all the things we use today in fly tying like epoxy, super glue, modern wax preparations (oil based), and certain man made materials, I wonder what the fish can smell? Fish do have a super acute sense of smell. I do think about it as I have begun to use super glue a lot in my fishing flies. It does make em last longer. I guess the smell disappears as it cures but I wonder??? I stopped using moth balls because of the smell which seemed to last a long time.