When I did Flight Planning, half the exam was based on the Super King Air, which was quite practical. The other half was based on the Echo Mark ??
The Echo Mark IV and King Air were from the CPL exams when I did them.
... As I said on the other thread, if you are flying a 767 (or even a 727) you will be using computer flight plans these days - so both are "unsuitable".
Perhaps they should base the exam on a jet GA type - something in which you are still expected to manually plan - something like the Westwind.