In that case, it might benefit you to place in a lower class. I took calculus about four years ago, right after taking the pre-calc sequence and was doing great. But I had to drop calc because of work, got a liberal arts degree in the meantime, and have only now been able to take it again (at the beginning of my physics degree). Remembering all the algebra and trig and such is making calc a lot harder than it should be. I feel like I need to re-take pre-calc, lol. But it's different for everyone... if you're flying through your review then you might be fine. There's usually some room for catch-up in whatever math class you're in, but if you're planning on taking a full courseload it will likely affect your grade. Professors like to throw curveballs on exams.