Thanks Aditi!
I could attempt only 4 full length Simulation exams from Prepcast Exam Simulator. Due to time constraint, I took a lot of quizzes (100 questions each) instead of the 200 question one; this had the same question pool as that of the full length exam, all from Prepcast.
I would advise you to take all 9 full length exams that the Prepcast Simulator offers, to be fully prepared!
Please create an excel sheet and track your percentages scored for the exams that you take and make sure that you attempt atleast 2000 - 2500 questions in total;the more the merrier

Good Luck!