There needs to be an emphasis placed on reasons for submitting additional LORs to USNA admissions. As mentioned above, they only add value to comments or items NOT already in your application. An LOR that just says Johnnie or Susie is a great student, athlete, leader, etc. won't be helpful. In particular, if LORs are wrote too broadly, that normally means it is repetitive OR the person really doesn't know you that well (or both). If one wishes to submit additional LORs, they really need to speak to detailed qualities and impacts. Some examples (not all encompassing)...maybe you partake in a faith organization and performed some/multiple highly impacting activity/activities requiring lots of hours organizing, leading, and executing the event and the only individual that is truly aware of the impacts is the faith leader/organization; maybe you saved someone's life by rescuing them from a dire situation and resuscitated them; maybe you coached little league sports on multiple occasions during your off-time, putting in a lot of effort to develop tomorrow's youth and the head coach could comment on your work ethic, leadership, etc.; maybe you had a regular/frequent job. Also, don't forget the BGO interview may also be a good opportunity to mention "others activities" which may not fit the application or an additional LOR. Bottom line, additional LORs need to be unique, distinct, talk about leadership qualities, and impact.