Hi, I am a 28 year old undergrad student. I still have a lot of courses to finish before I take my mcat. I saw a method that I think will prepare me in the future and I would like some feedback. Searching on YouTube it was recommended to purchase a content review book or set. Next as I complete my prerequisite courses I should annotate in the book as I take the course. Then when it's time to take the mcat I can refer to the content in the book and my annotations which should be very important for my studying. Note I will not be studying for the mcat as I take my prerequisite courses. I will only be adding information I have learned which is relevant to the review book. Would this pay off down the line?