The count usually depends on the pitcher, I simply try to pick up on a pitchers routine and try to guess when he's throwing a curveball. The only count I consistently steal on is 2-2 because most pitchers will go with their offspeed pitch(or their best pitch). Few high school pitchers are willing to throw an offspeed pitch on 3-2, so most will throw that offspeed on the 2-2 count.