Can anyone explain what the reasoning is behind this "6 sittings" nonsense?
EASA (I believe) discussed, planned and then set the "rules" for Commercial
Aviation - and, to ensure a certain depth of knowledge, I think it a good idea
to prevent ATPL candidates studying for, and then taking, their 14 exams
one at a time.
The problem for PPL students is that EASA (as in many other areas) then
applied the same rules to all aviation - not considering the requirements,
needs, or practicalities, for the Leisure/Private Pilot.