Slightly different situation for me (JAR licence, G-reg a/c in Britain) but,
I had to have a 28 day currency check with an instructor as it was 2 months since I last flew (flying club rule). He signed the a/c out as 'commander' with my name as student. However I took all decisions relating to the flight and was sole manipulator of the controls throughout. Should I log the time as P1, P/UT, or PiC U/S?