redoing mock exams about, couple, better, earlier, anybody

vagabond

If anybody has re-done one of their mock exams did you find it too easy or was it still beneficial?

I had planned on doing Schweser vol #2 in the next couple of days, but I have read that it is not that beneficial to do. So, I am wondering if it is better to redo one of the earlier mocks (the first of which I did about a month ago) or go on with vol #2?