I took the SAT pretty early. I have looked at other programs, but I think I have a strong chance for those. For grade trends, I have gotten straight As throughout 8th, 9th and 10th grade. (Advanced students take their first high school classes in 8th at my school).
Also, I am taking Advanced Precalc right now, which covers a lot of the course work of AP Calc AB. I guess I could take the test for it, but I don’t think I need more AP tests.