Book 2 is beyond terrible. I have done two of the afternoon tests in the last couple of days and the answers are nit picky BS.
In exam 1 there were 3 questions where the answer literally contradicts itself "This was right but there is another strategy that is better." and one answer that used the prior to CFA errata definition of interest rate options.
In exam 2 there are 3 answers that either contradict the CFA texts or contradict their own texts.
I will probably skip the other exams in book two as I don't want to lose knowledge by remembering their answers that aren't correct.