@sadler6 Looking at college matriculation lists, it seems that MBS may be somewhat lacking, compared to Pingry, NA or Delbarton.
Here is MBS’s class of 2018 profile: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjX_J_U8ZTaAhWD5YMKHbpQCRsQFggmMAA&url=https%3A%2F%2Fwww.mbs.net%2Fuploaded%2FDocuments%2F2017-2018%2FCollege_Counseling%2F2018_MBS_Class_Profile.pdf&usg=AOvVaw0dlmJlY76As05JdbFyb4e8
It does not seem like many students are taking AP classes. You mentioned that your son was academically oriented– this may be a disadvantage for him.
MBS’s college matriculation list gives a list of all colleges that students have matriculated to over the past 4 years. They do not specify exactly how many students attend these colleges, this may be a red flag. Also, depending on your son’s college goals, MBS may not be the best for top schools. Big names such as Harvard, Princeton, MIT, Stanford, and Dartmouth are colleges that are missing from that list. Especially since this list encompasses 4 years of college matriculations, this may be an important factor when considering schools.
Hope this helped!