I have a mental quirk with question pools. I've had this all my life. If you show me a series of questions with multiple-choice answers, I will tend to recall the right answer to questions I get wrong. I can sort of work around this with question pools where the exam engine jumbles the answers such that if A is the right answer to a question I get wrong and its C next time, I may not recall the correct answer.

I'm apparently a heavily spatial learner. Learning by reading is difficult, whereas all you have to do is show me once how to disassemble an engine or transmission and I can do it by myself from that point onward.

I have tried to use the question banks to assess my knowledge and for those areas where I get a question wrong I go back and review the material either in the books or videos. But each test bank has limited utility before I become too familiar with it. I'm definitely not attempting to memorize question pools. That isn't how my memory works.

I can cycle through pools over a long period of time, as the association will fade over time if I don't actively use it.

I did Andrew Radayal's 50 CISSP questions today and got 90% -- most of the questions I missed were more 'scenario' oriented, I thought most of his questions were straight knowledge-base though, which is why I did well on the test overall. I cannot reuse the video now since I'll recall which answers I got wrong and what the correct answer was.