no buy up July 7, 2018 at 969 × 861 in SOLVED: Why sometimes the Regional / Global cert Delta Medallion show “shadow” flight and sometimes not. Also, does it really make any difference? Let’s find out! ← Previous / Next → This post contains references to products from one or more of our advertisers. We may receive compensation when you click on links to those products. For an explanation of our advertising policy, visit visit this page. Related