Agreed, Don’s songs are mostly about his voice and voice style. The SD7 certainly adds some realism, the clarity of the drums is fantastic.

The Pa4x adds more warmth – depth, than the SD7. (opinion) Don has not need for raw out-front drums. (and other instruments)

I vote for Don + Pa4x. If only he could put some good Italian olive oil on the keys to make them move easier. (smile)
John C.