I can understand the F15, but not the wing tips. That usually doesn't come into play until VF30 on decent struck coins.
I have seen very few get a VF if you can not see the separation in the top two feathers. It may be weak but usually still visible.
maybe closer to the base of the feathers, but at the wing tips, no. http://www.barbercoins.org/Grading-BH.html