DPI or Illegal use of the hands?

[WaRef]

In general, I would not throw a flag unless a] the contact prevented a fair opportunity for the receiver to catch the pass, b] the contact prevented the QB access to a potential receiver (before the pass is thrown - not DPI), or c] the contact constitutes a personal foul. So, on minor contact over the middle, you need to make a quick judgment as to advantage/disadvantage and decide on a call or no-call.