I second what USMA1994 said. I too have a DD who received LOE early on in process for Class of 2021 and did not get an appointment even though she also had very competitive package. She is currently a West Point sponsored civil prep cadet and will have to continue to prove herself academically and physically while she waits for an appointment to Class of 2022. So, even with these letters keep improving your file because everyone else on your slate is going to be doing everything they can to get closer to top.