Hey guys ,

Need some help here, I'm trying to mark the balance points on the wing tips but ive tried like 5 times and im getting one point a Half Inch ahead of the other everytime, im keeping the string centered as posible on the tube but still getting these results, maybe some one on here have some mesurement I could go by or any other way of marking them?? I apprecite your help.

Thank you guys,

Kenric P