Jim Macklin wrote:
Second in command time, only a CFI can log PIC when they are
not actually sole manipulator of the controls.

Be honest, you are only required while the hood is on.

You can log PIC, instructor or not, any time you are either acting as
PIC, or the sole manipulator of the controls.

Anyway, it's your logbook, you can write anything you want to in it.
It's only when you want to use your logbook as evidence of experience
for a job or rating application that it matters.

Personally, I don't log time I spend as a safety pilot, but you
certainly may, either as

[PIC if you are acting as PIC], or as

[SIC if you're not PIC but a required crewmember since the PIC is using
a view restricting device].