RELEASE DATE:  Wednesday, May 11th at 1pm (CST) via the Panini Direct Store PIS DOCUMENT:  22_DiamondKingsBB_PIS_Hobby_EDITED DETAILS:  Diamond Kings have become a mainstay in baseball card collecting since the early 80s. The marriage of sports and art immediately resonated with a large collector base. What started out as a popular subset morphed into a stand-alone product that also garnered collector popularity…