<p>Like everything else, it depends. If you took physics in 9th grade and then took the test 3 years later and scored a 690, I would think that it would the same as haven just taken AP physics, took the test right away and scored 750. The person with the 3 year wait is not that far behind and looks to have retained a lot. On the other hand, a person who just took the course is expected score in mid-700s. While SAT IIs matter, they matter in the context of everything else in your school record. Basically send the highest that you think helps you. If your gut says it does not help, then do not send. </p>