As a recruited basketball player I can tell you I spoke with my BGO once. I was told by the coach that if the BGO called to tell him I was a basketball recruit and give them the coaches name and number. Never heard from him again. To be honest he closest BGO to my house was 4 hours from my house so my interaction would have been limited, especially since this was before email was really huge (i know gasp!). Other than the BGO piece, I did all the regular application and nomination stuff. When I took my official recruit visit I did meet and have lots of Q&A time with a variety of folks to include the Asst Athletic Director, Athletic Director, Supt and Dant. Each of these were about 10-20 mins each. Although not official, I am sure if I was an idiot these could of had an impact on my appointment.
I did go to all the regular nomination interviews everyone else did and actually earned a Principle Nom from my Congressman.