When you buy a dozen pre-boxed arrows from Carbon Express or Easton, how do the arrows come fletch? I know they are not helical, but are they off-set, and by how much. I can't seem to find that out on any of their websites. If they are straight why? I know it cost the company less because they are easier to fletch that way, and there wouldn't be as many arrows that had to go through a second time due to adhering problems, but if it does no good rotation wise why do it? I would think that customers would become upset at their arrows not flying properly and cast a bad light on the company and causing people to switch to a brand that does, thereby loosing the arrow company more money than they would have spent just fletching with at least an offset to begin with. Anyone have any ideas on this or know where I can find out how different companies fletch their arrows?