It turns out that a handful of early-season rookie debuts who were left off the original checklist have 2024 Topps Series 2 Baseball Short Print Variations.
Jackson Holliday, Jackson Chourio, Jackson Merrill and Wyatt Langford all make their flagship debuts in the product. For Holliday, it’s actually seven different cards (and possibly more).
These are different from the Golden Mirror Image Variations that cover all 350 base cards in the set. These rookie variations are more like the unannounced Shohei Ohtani Dodgers and Juan Soto Yankees cards found in Series 1.