<p>You get actual credit for testing out of Math and Physics but not for Chem- if you test out of Chem 1 you have to take 2 terms of either chem 41 (orgo) or Chem 21 (p-chem).
Also I think the principal reason more frosh don’t take ACM 95 is that most frosh who test out of math 1 are (considering being) math getting a good majors, and know in advance that this is a class most math majors don’t take. If youre a very smart but lazy frosh who took differential equations in high school and are planning to major in anything other then math/cs/chem/bio taking 95 frosh year may be a good idea- you can 50-50 it on pass fail and not worry about grade.</p>