F7. Paint starts to flake off the edge of the crown / top of the face. Not a skymark, but if you catch it high on the face it can happen.
This pic is of my F8 about 1 month after purchase. First noticed the flaking at 2 weeks, but it wasn't visible at address. Now it is visible at address. My F7 went through the same progression, but in 6 months it had significant areas of paint missing.
I could live with the F8 as it is right now, but based on my F7 experience, it will get worse.