Originally Posted by Say again slowly
To me it's clear what is sensible and what is written in LASORS. Again if you don't like it, then contact the CAA to change the guidance.
There's no need, the text in LASORS is quite clear already.
The FI should make the purpose of the training flight clear at the outset. His function is to ascertain the applicant’s knowledge and skills, and interject if necessary to improve on these.
So you should make clear to the applicant the function of the instructor is:
i) To ascertain the applicant's knowledge and skills...
The FI looks at what the applicant is doing and forms an opinion on their level of ability.
ii) ...and interject if necessary to improve on these.
If necessary you tell them what they can do to improve their knowledge and skills.
Seems simple and straightforward. You look at what they're doing and tell them if they're doing something wrong. There's nothing about failing them for poor performance. There's nothing about carrying out a pseudo flight test. There's nothing about pretending the training flight didn't take place to force them to do a a bit more training at your discretion. You observe. You comment. You sign the logbook to confirm the flight took place.
Anything else you think it says is purely in your head.