Predicting college success is an inexact science, at best, which is why colleges look at grades, test scores, and other factors in making admissions decisions. The private school at which I taught had a VERY tough grading scale - so our B/C students routinely went on to be B/A students at prestigious colleges. Other schools - yes, here in the Houston area - would give students Bs for breathing. Standardized tests level the playing field somewhat, but again, nothing is 100% accurate. Males do better on the SAT, but females have higher college g.p.as. If the SAT were a totally accurate indicator of college preparedness you would expect the males to do better in college.
I hate the 10% rule for the same reason I hate curving grades - I don't think you as an individual should be penalized if you are in a class of smarties, nor should you be rewarded if your classmates are idiots.
