I already said this in another thread but I got a 247 4 weeks out and a 256 3 weeks out on my UWSA, but then scored a 236 on NBME 4. Now I don't know if that's because I just got really comfortable with the way Uworld asked questions or maybe I was just weaker on the topics that NBME 4 tested (esp. immuno) but I think the general consensus is that UWSA does OVER estimate.