Another good reason to fish on tubes, is that you can change your leader/hooks, when they get worn, or oxidized. If you've been skipping on the surface for a while, and are having no luck, try a bead, a bullet weight, your choice of tube fly, and small willow leaf blade on a clevis. A good way to start the day, actually, is one on top, and one with a blade, see which one they prefer. If anyone has any of those inline spinner bodies made by Jed Davis/Pentac, they work great for adding a little weight/flash to a coho skipping fly. I think tying coho tubes would be a great way for anyone interested to learn the basics of flytying. You don't need a special vise, just clip the eye off of a 2/0 siwash hook, and build up enough material of your choice around the shank of the hook, so when you slide the piece of tube on the hook, it stays tight. You can make different hooks, for different diameter tubes. I like to keep my bellies white, a couple of grizzly hackles on each side, down the centerline, my choice of color, finished off with dark blue or black as a topping, with some prismatic eyes.