Unfortunately, the scoring zones are different for each game. Take a perfect sight picture for an IDPA target in an ICORE match and even your best hits will be one- or two-second penalties, since the ICORE A Zone is lower than the 0 Zone on an IDPA target.
Expert shooters know that when practicing for a specific game, they need to use that game's target to define the proper sight picture. Buying multiple targets, which don't last forever, can get expensive. There is, however, a simple solution that not only saves money, but also provides a better way to get dialed in.