Naplex Compounding

I hear the compounding on the Naplex is ridiculous. I currently have the 2017 RxPrep book but have been told that it's nowhere near sufficient. I'm wondering what the better resources are. Is the 2018 version any more helpful? Am I going to have to review Remington's, Trissel's, and USP 795/797? That seems excessive.

Thanks in advance.