Before I ship anything I have my wife weigh it, many times it is cheaper to put in a yellow bag and pay much less than if it fits it ships. I mentioned my nephew worked for USPS for a year or so, he told me the stuff they hate the most are things like the plated bullets I buy that just fit under the 50lb limit and come in a box not much larger than a softball. The shippers are smart and use half a roll of packing tape because they know the guys at USPS are going to hate it and roll it, kick it, drop it but it gets here all in one piece. He also told me whatever I do never ship anything fragile in a box that resembles in any way a football, "Hey Bobby, go deep." I still don't have any complaints with the USPS. I have had problems...sure, but it usually came down to the fact that the sender didn't use enough packing material to prevent damage or didn't properly or legibly write my address on the item which then got sent back to bloody Austrailia after failing to get through customs, thats not the fault of USPS.