May 28, 2020
You've already answered your own question. You seem to understand that elite-college admission officers are more gleeful when they see scores of 4 or 5 than 3, however, they will also take into account that you were a mere sophomore when you tackled the daunting Calc BC exam. While the dates of your AP tests will be included when you submit your scores to colleges, if you indeed score below a 4, you might want to enclose just a brief supplementary note with your applications and point out to colleges what youâ€™ve just told us: in other words, that you jumped up to the more challenging BC class in mid-yearâ€"and all of this when you were just a 10th grader.
Moreover, we can only assume that, since youâ€™ve now completed what is typically the highest math class offered to most high school students, then perhaps you will continue math by either taking classes at a local college while still in high school or via distance learning. If you do elect college math classes in your junior and senior years, admission officials will most likely be very impressed by the mathematical heights you will have scaled by graduation, and this will be far more significant to them than the AP score you earned as a sophomore.
Best of luck to youâ€"both on this exam and throughout the rest of your school career.