RE: Lumenocks
I have a couple of them. They seem to work pretty well. After I 1st installed them they were too loose... if you pulled the arrow off the string the nock would stay on the string and not in the arrow. What I did to remedy this was to take a small piece of tape (maybe 1/4" x 1/2") and placed it long ways accross where the black shrink tubing meets the orange nock. This was just enough to snug it up so that they'd fit snugly and not come off... yet still operate correctly. The nock is activated by the bowstring causing the nock to seat against the shaft... then it's turned off by applying pressure to the side of the nock to unseat it slightly. After this modification.. they worked wonderfully.