Just made four of them myself. I used too much glue on the first one and had to take it apart and clean it back up. It still worked fine after the second try. I made the mistake of looking on ebay for them and paid almost 5 bucks each....lol. Oh well, guess I'll know better next time. After making my first set, I figured it might be better to use the epoxy to glue the light into the nock as well. It would transfer the light better in my opinion. The super glue dries with a white chalkie look to it and the epoxy would be clear. I will try it next time.