Just noting thast when you include directory delegations, the majority of
operations will need text here.  Just steeling myself.

This is not really a discussion item.  We need a volunteer to produce text.

In the thread of discussion about a client doing an OPEN
while holding a delegation for the file, it was noticed
that clarifications were needed for which operations effect
delegations.  See this message for the end of the discussion:
http://www1.ietf.org/mail-archive/web/nfsv4/current/msg02780.html

RFC3530 section 9.4.4 would be the original reference