As the shipping supervisor for a company that ships out a couple hundred small packages a day this is what I can tell you. USPS even with tracking numbers suck they are not like the others they don't scan the packages in route nor do they guarantee delivery times. I have never had success with tracking packages through the post office most times I end up filing a claim. Performance has to wait 15 days before they can file a claim. Since YOU have the shipping options you made the choice not Performance next time pick one of the other ground services they are easier to track.