I live for bare shafting and i can tune a bow in minutes now. paper tunign is too much prep and dealing with newspaper, I just shoot at a flat target..
the basics; when you shoot that bareshaft 1st thing is hold the bow perfectly verticle,, 2nd make sure you have even tension on all your fingers and a clean release, 3rd don't aim or pick a spot and do not move anything when you release (which you should be doing anyway)like paper tuning your form must be perfect,, while watching that arrow,,,,accuracy comes latter when they are fletched and never mind the bare shafts hitting with the fletched ones thats a compound thing we used for quick tune when tuning our compounds,, with bare shafting you will be able to spin anythign from a tree shark with 4" fletch to a field point with no impact difference PLUS when it rains or snows and your fletching gets wet and lays down it still flys perfect as long as your form is perfect(a few of my bows I re-tune for late season and heavy winter clothing and find I need a heavier point or lower my brace height.
you can fine tune even more later using your own style of holding or canting the bow once you have the arrow flying good from here which is all most people do..
when you shoot that shaft you should see nothing but the back of the nock,,, it should fly like there is invisible fletching on it,, sometimes you need someone looking over your shoulder to confirm what you think you saw.
everyone has their own way and it works but this is my way that I found gets me much better results quicker.