Everything goes into the same place every time. It saves a lot of time and aggravation. I usually only zip the cases. Then, after I have it all in place in the car or truck, I spread a light colored blanket over the whole thing for one more round of protection. I have and so have a number of other photographers I know.
Vibration kills cameras.
It backs screws out. It loosens everything. It is a killer. With sheet film in holders, it causes problems. Load your holders, stand them on end as many sheet film users do and then drive through Monument Vally for a couple of hours.