RE: Arrow Straightness, how important is it?
More important than straightness, is spine consistency. And usually straightness and consistency go hand in hand. If they can't get an arrow straight, they can't build it so the spine is consistent all the way around.
With cheaper arrows, I would be lucky to find 5 out of 12 with consistency that I would want to hunt with. I have tested a bunch of em, and even my arrows I use now carbon express CX edges, I had to send 3-4 out of a dozen back to find good arrows. Bemans hawks, and MFX's were worse. But both companies took care of me.
I tested out some carbon tech whitetail and surprisingly all 12 were perfect. But they are 130 dollars a doz just for the shafts.