If you are in band 4, you’re probably thinking about giving up… I know how it feels to go through the first 2 weeks after failing a CFA exam. I had to retake CFA L1 and failed L2 last year. Don’t Give up! I like Schweser. This time around, I spent alot more time focusing what I went wrong instead of simply working on tonnes and tonnes questions (which might work in L1 but L2 is a beast). I would only go to Exam Vol 2 if there are topics I feel unprepared. For most topics I felt Vol 1 was good enough. And how good is enough… For me, avg 70%+ on Vol1. Good luck!