RE: Arrow Straightness, how important is it?
From my experience it is better to get arrows staright to .003" vs .006", but not necessarily .001".
Look at it this way. If you are able to build or have your arrows built then you take a .003" shaft. Cut 1 1/2" from the nock end of the arrow. Cut the rest from the point end. What you end up with is a shaft that is straight to .002" or less. The reason is that most carbon shafts have their imperfections nearer to the ends with the middle being the straightest.
As mentioned also is that most arrows with straighter tolerances also have tighter tolerances on the other crucial factors such as spine and weight, spine being more critical. Weight differences of a couple grains bewteen arrows is something you'll most likely never see, even at longer yardages.
And looking at the past? Don't sell those Autumn Orange XX75 shafts short. They were good in their time and are still good----but you aren't going to find too many orange shafts any more. Before the advent of carbon shafts I shot those orange logs for many years.