@Mounir Mallek: I think there is no Advance case with minimal engagement because that’s the definition of an advance case, a case in which a size 15/02 hand file does not easily reach the apex. So, you will always have extra engagement in these cases. Currently you can use the 15/05 or some of the newer 17/04 and 17/06 EndoSequence Scout files in such cases to get down first since they are more flexible. I hope this makes sense.
Best wishes,
Ali