I have both Burt Coyote Lumanocks and the NocTurnals. I use them interchangebly. I like the NocTurnals better for I have had fewer turn-offs after shooting with them than the NocTurnals. The one and only problem I have had with the NocTurnals was I had one that would not stay off after I kiiled a deer with it. I called them and they said to wash/soak it in rubbing alcohol for a few seconds, shake off, then let dry over night. Problem solved!!!!! Killed 2 more deer with that nock before it was busted on the 3rd. I feel that I will change over to them solely when the BC's wear out.