From what I recall on one of the Solocks exams was that as soon as something goes on the hook, all quantity restrictions etc went out the window.
There are of course exceptions if you’re hauling explosives but fuel, propane etc, as long as you had it in your COM and EC paperwork, you’re good to go.
I used to work for an operator that had all their training on line. But our training syllabus also had an hour component you could bill for or put on your time sheet if you were an employee. It was based on the type and length of the exam.
Example: an INDOC COM exam with 70 questions or so you could bill for 3 hours.
It seemed fair and it shut up a lot of complaints.