Config-2 it probably depends at what stage you failed. ATP people take the PILAPT tests as well, so if you dropped out at stage 2, that might prevent you from progressing onto the ATP scheme but I guess it does depend on how you did overall. Stage 3, I don't really know to be honest, it is also the same for both Wings cadets and ATP people, although you can guess that the interview is more technical for ATP applicants.