OK I was wondering how many people use them

I been using the easton lighted nocks now for about 3-4 yrs, on both my X bow and compound

not the greatest, but they do work, and make arrow recovery SO much easier, have even missed a target and couldn't find in day time, but came back at night and right to it!

I have had to let a few deer go over night on shots on deer, at last light, and came back next day and nock was still going strong, have even left them on to see how long one will last and have gotten 3+ full days of of them working!

so??
anyone else use them besides me?