Agreed. I took one game to calibrate (I've just never worked with scatter plots much and had no idea what various P-levels "looked like") and got ~30 on my second game. What finally killed me was a streak of low correlations - Eyeballing gives me no idea if it's a 0.05 or a 0.35. Anything 0.45 - 0.8 seemed pretty easy. I didn't really get anything over 0.85.