By postal ship do you mean USPS? I don’t know about other places, but in the town my college is in fedex and ups work way better, especially for larger items. But that is just one place, I am sure it flip flops back and forth depending on location. As a buyer, if I were presented with the 3 main options in the us (usps, ups, fedex) and price ranges for each, I would probably pick ups personally.
Reply To: Injection Mold Machine