If the recruit is already considering you, an AC Scout will come back with a self-scout.
If you're a D-IA team scouting a D-IAA(ish) recruit that's Undecided or minimally considering other teams, an AC Scout will come back with self-scout. Likewise for D-IAA team scouting a D-II(ish) recruit.
In these circumstances, a HC Scout is prudent.