Home Forums Hunting & Shooting Bowhunting Do You Bare Shaft or Nock Tune?

I've never heard of it until doing the new bow research. I'll be doing it for sure. It also looks like I'm under spined on my current set up.

I'm shooting 28" arrows, 62# draw with 400 shafts. It looks like I should be using 340 or 300's even.