Jack Brown wrote:

Who and how is time logged?

I wouldn't log it at all. Unless he's a CFI providing instruction, pilot #2
can't log the time. Pilot #1 can log the time, but it could get sticky if for
any reason the FAA wants to see his logbook at a later date. If pilot #1 decides
to log it, he should have pilot #2 add a note to the logbook IMO.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.