@Marian No problem, and I appreciate your comments.
My post about not taking the Calc exam was more about reducing the stress of my son. It was not about reducing the tuition cost or graduating early since none of these would be accomplished by taking the AP Calc exam. BTW, he has taken AP Calc AB last year and got a 4 as a junior. But he did stress about that AP Calc test since math is not his strongest subject. This year he has signed up to take the 4 AP exams in May and I was ‘thinking’ more in my son’s perspective as in, “if I am required to take Calc again in college, why should I stress about taking the AP Calc exam?” Maybe I am getting old and lazy.
Edit: I should add that my S is not interested and will not take anything more advanced than Cal 1 and 2 in college. He definitely is not a math kind of a guy.