It's not about the notes.
Its feeding you the right information to pass.
And from sitting in Gatwick waiting for the next exam there is one thing which everyone wants.
You might have guessed it's the feeback from OAT. Its up to 850 questions in principles of flight alone. And when i sat the techs i had seen nearly 2/3rds of the questions before except the M&B exam. Where we had the real advantage because we knew the definition of useful load and traffic load.
MJ