I am setting up a new plane with a 80" wing span and was wondering what is the best method to get the aeileron surface set as close as possible to "0" . It is a flat bottom wing and and I am trying to get everything set as close to "0" as possible before I fly the plane for the first time. I have been told to just "eyeball" it or place a small ruler flat on the wing and aeileron and turn the clevis until they are lined up. Do any of you have any other tips to make this process easier and more precise? Thanks