I hold the nppl m, and fly a fast 3 axis composite microlight,
the only difference I can make out re training is, I was never taught nav aids
also the two nav exercises required are two leg, rather than three with the full ppl.
I would imagine most people have different reasons to go for either, my thoughts were, I don't wish to earn a living flying, I don't want to fly at night or by instruments, so it seemed a logical route to take, for me !
" oh you can fly all over europe in a microlight with the nppl m "
I believe the nppl sep version, permision needs to be sought.