Arrow flight

[Curvebo]

So I bought one of those lighted nocks just to see my arrow flight a little better and I noticed a little side to side "waggle" in my arrow. When I shoot an arrow with a regular nock the flight appears to be good. Is the little side to side I'm noticing arrow parallax or is it flight issues?  The waggle seems to happen all the way to the target.

[gonefishing600]

I have never conducted this experiment, but my commone since and other skills would have to ask:

Have you ever used a laser level?
Have you ever tried to focus a 400mm telescopic lense?
Was the wind perfectly calm?
How do your arrows fly with a broadhead?

The point I'm trying to make is, you could be seeing wobble that is not noticable to the naked eye, and could only be noticable under a microscope, being the light against the dark, which is probably not nessessary.

How are the arrows impacting, left, right?

[McDave]

I've never used lighted nocks, but my impression is that they are heavier than regular nocks. Adding weight to the nock end will stiffen the arrow, and could cause wobble if your regular setup is properly tuned.