Be sure that the shaft and/or wrap are clean ( Bohning SSR works great), once it is clean try your hardest not to handle that part of the shaft. Place the shaft and the vanes into the jig and then I use Bohning instant fletch glue (Goat Tuff is great also) like others have posted lighten up on the amount, close your jig and let it set for about 3-4 minutes and then remove it and go to the next one. With all glues I don't shoot the arrow until the next day I like the glue to cure (just my 2 cents).