The thing you have to remember about UPS especially, is that ground shipments and third day select are loaded BY CONVEYOR BELTS into a 45 foot trailer with an aluminum deck floor.
That's right...your bow rides up a conveyor belt and falls from eight feet to the bottom of the trailer...and right behind it could be a 50 lb five gallon pail of paint, or quick cement, or a box with axes in it, or whatever. That lands ON TOP OF YOUR BOW.
The only way to responsibly ship bows is PVC if its a longbow, or package your TD bow in an arrow box, then put the arrow box inside a bigger box with lots of peanuts around it. Make sure the box INSIDE is marked to destination as well, in case they tear up your outer container.