Hitter or Swinger as referenced in 12-1-0 and 12-2-0 respectfully, are patterns of an uncompensated golf stroke, is it not?
A Switter (msp) is someone who mixes hitting and swinging components to create a pattern that requires compensation to correct, else you end up switting which results in inconsistencies, poor results, etc. That was my understanding.
Looking for a 'pure' hitter or swinger is probably something you will not find on the PGA or even LPGA tour. But that doesn't mean the personalized pattern isn't of a hitter or swinger.
From the little I have seen of John, I think he is primarily a hitter with the wedges and irons. His driver looks more like he is a swinger. Having two patterns is not unusual.