New Upper Deck The Cup RPA Slab Reactions From PSA's Brad Hartlin & The Cup Expert Mitch Gropman

Send us a text Our Patreon - https://www.patreon.com/HockeyCardsGongshow As your Upper Deck Cup Slab hobby leader (lol), we continue our coverage of this innovative approach to protecting patch swapping with reactions from The Cup expert Mitch Gropman (10:24) and PSA's Brad Hartlin (1:02:17) and Partners & Sponsors HockeyChecklists.com - https://www.hockeychecklists.com Slab Sharks Consignment - http://bit.ly/3GUvsxN Slab Sharks is now accepting U.S. submissions! MINTINK - http...