Does it matter how much feather you have left on the side you cut? Just wondering since your atlatl build had a significant amount more. Thanks. Love the vids.
hardwoods are often the best, but simply look for whatever is relatively stiff and grows somewhat straight. you can always heat straighten, but another trick is to splice shorter sticks together to make a longer shaft if need be. use a bone collar, or something else to make an easy splice.
the glue in the Video is titebond 3. The reason I use it is it's waterproof and customer friendly. Historically sinew would be glue down with either hide glue or raw pine sap. really any glue will get it done.