I’m relying solely on Schweser QBank and Concept Checkers in addition to EOCs for now. I revisit random readings and questions once every week. QBank certainly isn’t very difficult, but it serves its purpose in my study plan: to keep concepts fresh until I’m done with my first read.
Starting in March, I’ll move to the CFAI questions on the website (new this year?) while reading through again and making more notes. In April and May I’ll turn to CFAI mock exams as much as possible (I have tests going back to 2007).
I think as long as you position them correctly in your study plan, Schweser questions aren’t bad. Just don’t expect them to serve as a good example of what you’ll see in June.
Note: I don’t feel like Schweser was any better for L2. In fact, I feel like Schweser questions at L2 were the worst of the three levels.