New nocks DO make a difference...
I know we have a lot of accomplished archers here, so this is prolly redundant to ya'll, but I've also noticed alot of new shooters here as well. This is just a little something I learned yesterday working at the shop.
My groups have suffered a little here lately, and I've been pretty diligent to find the answer. I asked my shop owner last night what he though, and he asked if I've tried new nocks? I hadn't given that any thought. Honestly, I just didn't think it would make that much difference. Long story short, it matters. New nocks, and she's drivin tacks again.
Moral of the story? If you've been shooting the same arrows alot, maybe try new nocks. It can make a big difference.