Complex sentence: Hitting occurs in Midget A and up, but full-contact occurs in every category starting from Midget AA, so Midget AA, Espoir, and AAA all have full-contact.
Split into simpler sentences: Hitting occurs in Midget A and up, but full-contact occurs in every category starting from Midget AA. So, the Midget categories AA, Espoir, and AAA all have full-contact.