I have two sons who tested out of Calc 1 and 2 with AP credit at two different universities, the oldest a Comp Sci and Eng major, the younger a Comp Sci major. Both got 5s on both AP exams. The oldest is sitting here next to me (he is a sophomore on spring break) and though he got a C in Calc 3 his first semester (he had a really poor Calc teacher. He ended up having her for Linear Algebra in Spring of freshman year and got an A—she was just not suited to teaching Calc in his opinion and he was learning how to do college) he said he absolutely wouldn’t have changed a thing because Calc 1 and 2 were absolute weed out classes. He’s now finishing his last math class. No regrets. The younger one is finishing his freshman year and got an A in Calc 3 last semester. It was something I worried about for both of them but they both talked to professors and advisers before making their decisions and were both happy with their decisions (I will also admit that the older one started with Calc 3 AMA (against mother’s advice) but I think it’s gotta be their decision). They both tested out of both freshman Physics classes too. In my opinion (I majored in Chem E) testing out of Physics and Chemistry as a Comp Sci major is a no-brainer.