Having both sat & written exams for my previous (non aviation) profession these exams are bloody disgrace & embarrassing especially for a so called 'professional qualification'. As stated they give learn objectives then ask/do something different without telling anybody & the 'system' seems to get worse every time there is a modification/update. The aviation authorities seem to have a vested interest in you failing as it generates income for them - remember CAA stands for Cash Again & Again when you fail the exam & they are in denial as to how bad it is.