I no longer use UPS also, part of it because it's inconvenient to get to their primary location or else I have to pay a surcharge for dropping it at Office Depot or another location. But more than that, many years ago, I had a huge argument with them over the value of a manuscript and photographs that could not be replaced if lost that were being sent to a publisher. I ended up not sending them UPS and opened a FEDX account. While FEDX may be a little more expensive, they've never lost anything and they're right down the street; they did delay a shipment that was a real pain, but they paid all charges to get it to its correct destination, albeit somewhat late, and the return charges to get it back to me.
FTR, I did mail a transmission with UPS that arrived safely, but that was probably in the mid 80's and at that time we played 100 questions about what was in the box, if the oil had been drained etc. I learned quickly to be the stupid wife; my husband told me it's an xxxx transmission, he packed it, he said to insure it for xxxx; that's all I know, I only do as instructed which includes delivering this to you.