I worked for 4 years in a distribution cent as the lead shipper in a facilty that shipped out up to 25000 packages a day.Many of them fragile. We shippped ups, usps, fedex, DHl and most other carriers. You never put more than 1 fragile , or handle carefully sticker on a box. We did many trails. the more stickers, the more beat up the box would be. We finally quit putting fragile stickers on, unless customer requested. We had less breakage, with no stickers. Also, the objects msut be packed tightly, bubble protects the best. Always use 200 lbd crush boxes, and pack them tighty. On some items , we would double box. But if you pack loosley , you will have much more damage, than packed tightly. Also, I am not defending any shipping company, but do the math. We would load trailers to the bursting point. We only would get at most 6 trailers a day. most of time 4. that is 4000 to 6000 packages per trailer. At the terminal where UPS would tranfer, they have less than 1hr per trailer to unload. No more than 2 guys per trailer. They all have a converyer in the trailer, and then out to be processed. If you think they will handle any of these packages with extreme care, you are mistaken. USPS has less time to sort, and may have fewer people doing it. I used ti think that it was always the freght companys fault, until I stood in thier shoes. There are some extreme cases of damage buy shipping company. Accidents happen. But 99.9 percent of broken in transit can be prevented , by proper packing. And bubble is the tops for preventing damage. bubble in styrafoam in boxes will keep about anything safe. Crushed paper, shredder paper, wood chips, whatever else I have seen, will fail, If it settles it will fail, . Just some things that I have seen