dedBuNNy: Doesn't matter which ball. I only use a couple of different ones now. N61/81 or Cally L53 that's it. Distance-wise they seem about the same.
Well I would be confused out of sight with more than one ball / club set combo.
Each to their own but all I can say is 1 ball with1 set of clubs, and learn all courses all shots with that is all I can hope to do OK with. If others can be more productive other ways great,,,,,,,,,,,,,,