You need to grab a copy of 61.51(e) and read it well.
You log PIC AND dual received while working on your CFII.

You log PIC and Dual recieved in your student's log books if they are
rated, otherwise just dual received.

You log PIC *anytime* you are giving instruction (yes, two people log
PIC at the same time)

-Robert


buttman wrote:
I have my CFI right now, and I'm flying with a CFII in preparation for
my CFII checkride. Do I log that time as Dual Received, as well as PIC,
or just PIC, or just Dual Received? Also, as a CFI should I be logging
the time I fly with my MEI for my multi rating as PIC, or is that
stretching it?

While we're on the subject, how should I log my students? I have one
who has his private, and is just flying with me to build time for his
instrument rating. Should he log our time together as both PIC and
Dual, or just Dual? I have always thought you either logged PIC or
Dual, never both; but lately I've noticed others doing both, so I
thought I'd just ask.

By the way, if it means anything, I instruct at a Part 141 school.