Bought some last week and after shooting them to see how they fly.(fly exactly as they did with my regular nocks) Last night was my first chance to use them in the woods. Had a nice doe come in at last shooting light. Drew my bow took careful aim and proceded to shoot right over her back. Atleast it was a clean miss. The nock worked very well, I was easily able to see that theshot was high.I could also see the arrow sticking in the ground, which made for easy recovery of my arrow.Overall I think it is a good poroduct that can be very helpful in a low light situation.