Ok, here is the bumper for my pack, primed for the second time, I can still see some fillings and seams, I guess it's one more time to fill the gaps, and sand it...

Hmm, can't really remember if this photo is actually taken before or after the one above.. Well, there's been so much sanding and pasting, Who can tell..

A little better closeup on the goggles, sanded for the millionth time..