making your own lighted nocks

[chessy]

saw this on another fourm.... and what i was wondering would this throw the arrow off from shooting correct ... i would like to try making them but dont know if ballance would be off ??

http://www.youtube.com/watch?v=hMqLT-4ezzk

[trailcamguy]

I've loaded my own shells, made my own arrows, and built fly rods for myself and others, just to name a few of my prouder moments.
Making those though, thoroughly kicked my butt........however, the one of a dozen that actually worked reliably did fly well .......
I'll spend the extra money.....

[outdoors_al]

So what type of Lumenok do we need for the Firebolts? I haven't looked into it very hard yet, but I can't seem to find a model number or anything to get the right lumenok on their website.

Thanks for any info!!