I did check, that was also a size recommended by several people. I'm slowly getting these grouped better now that I have them fletched slightly offset. I need to play with some things, but I'm getting it. I'm very new to all of the tuning issues. The pro shop I go to has all but shut down their business, so I'm left to do most of this on my own, or Gander Mountain, whom I really don't have a lot of faith in. Not sure if that's justified, I'm sure Rob would know.