I am traveling alone with two kids soon and trying to figure out the easiest car seat configuration so I have to shlep the least amount! I think I'll bring one travel vest and one HBB (Turbobooster). Neither of my kids has a tall enough torso height for a backless booster. In any event - when we bring car seats we do not check them because I fear them being broken or having some sort of damage that makes them unsafe. No biggie, DS sits in his on the plane. But . . . I can't have a kid sit in a HBB on a plane so i'd need to check it. Is there a good way to check it and keep it in one piece? Do I still have to worry about unseen damage with the HBB? I mean, as long as the seatbelt is properly routed that's all that matters, right? Just trying to decide whether to bring a carseat and vest or booster and vest, and I'd rather bring the booster. Thanks for any insight!