You will apply to ridiculously competitive colleges.
On the SAT, you'll get the "easy" and "medium" questions right. Ten "hard" questions will make or break your score.
Miss 3 of the 10 hard questions . . . get a 750.
Miss 6 of the 10 hard questions . . . it's a 700.
If you miss all 10 hard questions . . . plan on a 650.
You already have "The Official SAT Study Guide."
You want more hard questions. You want to do 10 hard "averages" questions in a row and 10 hard "probability" questions in a row . . . you want to do all twenty CrushTheTest categories.
You have a sense of humor. You won't be offended if we make fun of the Educational Testing Service.