Well, Brentandbecca confirmed that there are no black back variations in the 2009 Topps Heritage set, but they did find another super short print variation, this time of John Smoltz. There is both a Braves and a Red Sox version of the Smoltz card, with the Boston variety being the much rarer card. That is three super tough variations so far. Wonder how many more there are.
Both 2009 Topps Heritage John Smoltz Variations