IMHO, the main reason for removing tubes for shipping is the possibility of the shipping carton being dropped upside down. This could cause a tube to come out of the socket, then being loose, would surely break.
remove tubes before moving cross town?
if it were under your total control, still think you need to remove tubes from the gear? (in this case, ARC Ref 150 and 5se. and the modwright CDP)
thanks
thanks