This is the way we see it and ask students/pilots to log time.
First of all you can log what you like in your log book its what you claim for the grant/renewal of a licence or rating that is defined in law. You can log P2 in a C172 if you want to but you can never claim it for the grant/.renewal etc..
The commander has to be decided before you fly, with a check out the supervising pilot is the commander and thus P1, the other pilot then can only be P1 U/S or PIC U/S--There has never been P1S, that log entry does not exist. around 35 years ago a well known log book manufacturer put P1/S inside a logbook cover and it has been around ever since but its not shown in any CAA document that I know of.
Even if the pilot fails his check ride( a test not required by the ANO) he still gets to log P1 U/S or P1C U/S .
We would not ask the handling pilot to log Pu/t because we see training in the log book context as being training for the grant or renewal of a licence or rating, or the failure of a flight test with an authorised examiner. A check ride does not fall into any of those categories.
Last edited by llanfairpg; 5th Jan 2008 at 14:58.