Past CFAI Exams or CFAI End of Reading Questions

What does everyone think is more valuable? I have been doing both, I just want to decide which ones I should go over multiple times. -Thanks.

i would think exams …seems like some of the questions have been recycled over the years …

Which ones ?

i dont remember exactly but if you go through all old exam Q’s from the CFAI texts you will see that some questions/cases were used again however the questions asked were different .