For vanes, I just use any of the gel type cyanoacrylate 'super' glues. The important thing to remember with this type of glue is it is pressure sensitive. For it to adhere properly, push firmly on the clamp to apply pressure against the shaft for about 10-15 seconds before releasing it and going to the next vane.

It doesn't take much pressure and, if you press too hard, you run the risk of making the clamp shift in the fixture. That'll yield fletching that looks like it was done by a drunken sailor.[:'(]