I thought that I bombed the PS section (8-9) and ended up with a 10. I thought that I did pretty well (11-12) on Bio, and ended up with an 11. I thought that I did incredibely well on Verbal, and got a 12. So, overall, i'd say I was accurate within a point.
Don't sweat it too much. I know it's hard not to obsess, especially with SDN at your fingertips, but it will probably only make you feel worse. Take a deep breath and focus on other things; you'll get your score soon enough. I'd say start obsessing about two weeks before scores come out, no earlier. 😀