Book of Analysis, the sense bases (Vb2): translator's introduction

Waltham St. Lawrence covers the six bases and how, unlike the first five, the mind base is non-material. You’ve made references to “mind objects” several times such as in the Theravada checklist discussion:

and the satipatthana sutta discussion:

You’ve translated SN 35.156 as:
“The ear … nose … tongue … body … mind really is impermanent.”

Some other translations (such as Piya Tan’s below) use mind-objects:
“Monks, when a monk sees forms…sounds…smells…tastes…touches… mind-objects—that are actually impermanent—as impermanent, that is his right view.”

My questions:

  • How would we succinctly replace the term “objects” with regard to the mind base?
  • What do we call what arises with contact in the mind if the mind is non-material?
  • Would we still use “sense objects” for the other five bases?
  • How would we correct the following definitions:

Consciousness: The ordinary ongoing process of knowing the six sense objects.

Sati: That observing faculty of mind that comes face to face with sense objects with a remembering of what the object is and what is happening in the moment.

If you could elaborate I would be extremely grateful.
with metta