RE: How important is shaft straighness for hunting??
One thing I noticed the guy shooting walmart arrows was shooting aluminum(gamegetters).IMO aluminum is much closer in spine and straightness tolerances because of the way it is manufactured.Carbon arrows are wrapped around, I'm assuming, around some sort of mandrel.You have glue to hold the layers together.This process leaves much in the room for error.ACC's have a inner aluminum core.They also are a good compromise between light weight and good quality if you don't want to shoot aluminum.
My ole granpappy said you get what you pay for.I've found this mostly to be true.
Of course I know guys that use rivercane to make arrows,talk about a challenge!
CB