I have always logged pre hire checkouts as PICUS, as instructed by the instructors.
Successful flight tests as PICUS.
Is this wrong??
As stated in a few threads so far...
In JAR land:
A successful flight test should be logged as P1S. A partial pass is logged as P/UT (you have not satisfied the requirements to command the flight), with the successful retest as P1S.
Any other training flight (training for a licence, rating, mandatory differences training, the biennial flight with an instructor, or a familiarisation checkout required by schools/clubs to hire aircraft) is P/UT.
Ultimately, who's signed for the aircraft and is responsible to the owner if it goes wrong? If it's you then you're P1. If it's an instructor then he's P1. If it's an examiner then it depends how it goes