well after inspection they look like they are going to be fine. I am going to suggest some things for everyone when they get there bumper.
1) inspect bumper before leaving Greyhound if it looks damaged, file a report. Greyhound will not cover the package if you have taken it home then realized something was wrong.
2) do some work to it, you guys are test subjects in a way. I feel like they are strong enough to hold up to daily driving and bumps, but I wont bet the farm on it. inspect the bumper and add strength to places where you think there should be more. there is no such thing as to strong.
3) Undercoat! the back of the bumper should be undercoated to make sure there is no carbon showing without resin. carbon is just like steel it is curosive and will fall apart if shown to water for a while.
I think that is pretty much it I will come up with more things later
Micah