On my test,I started taxying to the hold without retracting the flaps,soon realised,confessed and no more was said.
I also forgot to align the DI,but confessed whilst lined up and no more was said.The idea of confession is to let him know you have spotted your mistake as he will have seen it anyway.
I ended up with a partial pass,failing the PFL as the only field that looked suitable was full of sheep and I picked a crap alternate and made a right hash of it.
.Examiner said if it was a real life FL,then I would have to take my chances with the sheep.
I had some revision and passed the (partial) retest the following week.I seem to remember that you still had to redo the departure and rejoin but not necessarily the landing.
You may want to do your A check before the examiner gets in.Mine got straight in while I did the checks,freezing his n
ts off,to his annoyance.
Good luck.
MM