How many letters are people going to send to USC?? Their email says "Additional letters of recommendation are optional. If you would like to provide additional letters for consideration, they will be included in your file. However, they will not be considered instead of your Pre-Medical Committee Evaluation or your two letters of recommendation from science faculty. The number of additional letters you submit will be at your discretion, however please be mindful of the fact that the Admissions Committee will be reading letters from over 5,000 applicants." So I am thinking 3 or 4? Does this sound good? Or should I just send in 2?