Oh Bob you really are clueless.
First off, charge back all you want. When ups presents its documentation to the credit card company including all the adjustments from their digital scales in their major hubs, also proof that the packages were both picked up and delivered. The credit card company will accept this as a legit charge for services rendered. But hey fight it. Then they can destroy your credit and put it in collections. Not to mention the federal agencies you will attract attention from for committing fraud across state lines and in commerce from shipping those packages you claim you didn't. Also you better hope no one signed for a delivery of your packages because then that's more proof in Ups favor.
But you go get them tiger!!!!