Unless receiving the ridiculous "one hours traning flight" required to revalidate then all checkouts must be P1 or you can never "Fail" for the simple reason there can only be one person in command in a single pilot airplane as defined, IE P2 in most SEP`s can NEVER be logged as there isnt a two crew requirement.
P/Ut apart from already said above can only be logged when receiving training that results in a licence or rating being added.
As far as those club checkouts you will soon find out who really is P1 if during the flight something gets broken or someone hurt.
Watch the race to see who gets to the Tippex first for the authorisation shhets.