Do i have to do khaled almaghraby thouroughly for part 1?

Do i have to do khaled almaghraby thouroughly for part 1 ??? (With passmedicone question bank…

I mean people say khaled AM is enough both for part 1 and part 2 , if its true, than any difference in reading it for part 1 & 2 ,focusing specific areas/chapters in part 1 and others in part 2 ???

Kindly guide me …

Thanks in advance