[AtlUmpSteve]

Consistency is important; but so is believability. No one in top level ball believes a pitch that the catcher cannot handle effectively is a strike, and you will get more grief and loss of respect if you call that pitch a strike, even if it is.

If the pitcher misses the outside corner target back to the inside corner (roughly a 20" miss), and the catcher has to dive to make the adjustment, you are a sitting duck if you call that pitch a strike. No one believes it is; even the team whom you gave the benefit of the correct call. The other calls based on the movement of the catcher's glove are an extension of that philosophy.