I've read about or known students that appliied SAT optional to good schools and got in with aid, but I have no idea the amount of students who do this and results. There is also no definitive way of knowing if aid would have been more or less if scores were submitted.
Maybe in the future, anyone who did submit SAT optional to a school can post how they made out in certain areas, whether it was full SAT optional or just submitting some scores like AP or SAT ll.
One link I read recently:
http://www.mtholyoke.edu/offices/com...ults_sat.shtml