If you have gone out of cetershot on your bow the extra weight of the Luminock will accentuate any problems you're having. Get your rig back to center shot and start over. When broadhead tuning the key word is that it is "fine" tuning; make very small adjustments. I generally can't slide a nock set down in small enough increments so I use the fine tuning adjustments on the rest, this is where the NAP 4000 and 3000 series rests really shine.