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

Hockey Cards Gongshow · May 29, 2025 · 2h 5m

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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

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