How does the Restatement of Values of Judicial Life (1997) describe the status of its sixteen clauses?

The Restatement closes by saying its clauses "are not meant to be exhaustive but only illustrative of what is expected of a Judge". So conduct not listed may still be improper, as clause 16 confirms by asking judges to avoid any act unbecoming of their office. It applies to judges of the Supreme Court and High Courts, not just subordinate courts.