The 3 rivet heads are directly under this end seal, but they're flat enough not to interfere with it.
The fine lines along the outboard edge are from the pliers I used to crimp the lip tight before installing the black rivet. I'll touch them up after I seal the torn edge. Rubber-faced bar clamps (like
Irwin QuickGrips) wouldn't have made any marks, and might have held the skins tighter.
