RE: How streight are your arrows?
Most carbon arrows are advertised to have a specific straightness tolerance (usually measured along a 28" section of the shaft) between .001" and .006". The straighter the arrow, the more expensive they will typically be. Most standard-grade carbon arrows have a straightness of around .006". These basic shafts are usually called "Hunters", and for good reason. For the purposes of close-quarters treestand hunting, most standard-grade shafts are more than adequate. A typical human hair is about .004"-.006" in diameter. So even a basic carbon shaft of .006" straightness is quite good, and straighter than you could possibly perceive without specialized equipment. But most manufacturers also offer a mid-grade shaft which will have an advertised straightness of around .003", and finally a "Pro" shaft that will claim .001" or less.