Authenticating game-worn memorabilia seems like a good idea. Has anyone used this service?

New Photo-Matching Service Launches

A group of sports memorabilia industry professionals has launched a new service for authenticating and grading game-used memorabilia. Photo-Matching & Grading (PM&G) is touting itself as the first “panel-based authentication service.” Advanced collectors, auction company executives and others with knowledge of the game-used hobby are part of the effort.