fwiw, just my observations as they apply to me and my shooting ...
having spent several decades (60's and 70's) very involved with target archery (recurve fingers and compound release), i see no benefit to bare shafting or paper tuning for barebow hunting bows, or any non-sight aiming bow, which includes both hard and soft sights - 'soft sights' means gap, poa. stringwalking, etc.
how an arrow flies out of a bow is predicated on three things; the arrow, the bow, the shooter. too often i've seen the problem with getting arrows to fly well out of a bow is an archer who hasn't mastered his bow. far too many archers or aspiring bowhunters start off their quest with too much holding weight. gotta crawl 'fore ya walk, and pay yer dues up front. gotta be real honest with yerself about bow holding weight, it's really that important. can you hold yer bow at full draw for 3 seconds and not even show a tremor?
if you are either over or under bowed, too heavy or too light a holding weight, you will have either form issues or a chore to get a good release of the string, and any form or release issue(s) gets amplified to the arrow, which in turn causes bad arrow flight, tail wagging and porpoising, and nock ends protruding form the butt that aren't at all as straight as they should be.
another consideration is how you aim. howard hill and many other barebow archers could pick out any arrow length, spine and weight, and make a good shot with it. the all aimed the arrow, got their master eye over the shaft, but always kept the target as the prime focus whether they looked at the arrow or not during their aiming process.
i had lots of problems when i first started shooting carbons. for the most part the shafts were way too stiff, but i could surely shoot them well enuf, but not consistently well as they were just a tad too squirrelly to shoot. after trial and lotsa errors i realized carbons just have too broad a spine range for any given shaft size. so i went down 2 sizes weaker in spine and had far more stable arrows.
the two other final factors in arrow flight are mass weight and foc. the more of each, the more stable the arrow is in flight because the arrow is now capable of accepting and absorbing more energy as delivered by the engine (bow limbs) via the transmission (the bowstring).
getting the gpp to at least 10 is a good thing for a hunting arrow. ditto for an foc that's above 15%.
hope some of this rap is at least food for thought.