Sorry for the delay in replying. I did NOT pass the BCPPS exam the first round (fall 2018), using just the ACCP material. I took the exam again in spring 2019 and passed. I was just under the 500 cutoff on my first exam so I thought I would just need a little push of additional material. I added studying tl;dr pharmacy's review on statistics and some youtube videos to beef up and that seemed to help out.
Part of my issue was that I had recently switched out of a pediatric pharmacy position and with not using that information on a day-to-day basis, I felt as if I was fighting brain drain. If you spend a fair amount of your time practicing in pediatric pharmacy, I feel that the ACCP materials would work well to attain a passing score.
Best of luck to anyone taking the exam👍