Well as a guy that films all of his hunts, something that is visible like that is always nice to have!! I have some, they are especially awesome when you shoot at squirrels up in trees late in the afternoon. They are a must when you hunt coons or yotes at night! I like the magnetic systems as they always work, but hate having to use the magnet. They are really fragile tho, lumenocks and tracers. But I still liked them.
I think it is funny to say having a lighted nock is not fair game. I have been aware of that rule, so I only used them for small game. Mainly because I dont shoot late in the afternoon on whitetails. But seriously does having a lighted nock give you more of an advantage vs a fur tracer?
In the end I am with Ipcjon2, pink feathers show up just as good on film, even in low light . . .