Question special

Several of you mentioned the importance of taking a diagnostic practice test before preparing for standardized exams. What other role did practice exams play for you, and how did you best utilize them? Did you take all of the provided NBME practice exams for Step 1 or Step 2CK? Did you space them out regularly in your preparation, or concentrate them leading up to the exam? Did you mostly rely on NBME practice exams, or did you use outside resources (i.e. UWorld self assessments, Kaplan, etc)? Were practice tests useful for shelf preparation during clerkships? Do they play a role when preparing for Step 3 or board certification exams?