<p>^I completely agree with everything you said.</p>
<p>However, once you start scoring close to 800 (750-800), the getting -1 begins to impact your score significantly. For example, a silly mistake on the math section could result in 30-40 pts difference. </p>
<p>My point it this, the SAT produces less reliable scores as your scores increase. (Someone with 1500 will usually get 1450-1550, however someone with 2300 will usually get 2220-2380). This is because as your scores increase -1 becomes a larger score deduction.</p>