The best I could say is scatter the NBME's throughout your preparation time. What I mean is use them sparingly to gauge your progress, because they are limited in quantity, use them wisely since its not recommended to do the same one more than once if used for prediction.
Leave the later NBME's 5,6,7 for last. Also USWA is known to be a good predictor and study tool.
Leave the later NBME's 5,6,7 for last. Also USWA is known to be a good predictor and study tool.