rair

Just gave my general test and found my Quant score to be 8 point lower than practice. I was scoring in the range 168-170 in practice but got 162 in actual. Difficulty for some questions were beyond that of the practice. Did someone else experience this? Could it be that I got a curve-ball set and would it be possible that ETS would accordingly update the %ile based on the set or am I expecting too much? Btw, my verbal score were spot-on.