A 'distal step' relationship of the primary second molars (in the mixed dentition) is most predictive of which permanent molar relationship?

Per Baume's terminal plane classification: a flush terminal plane usually leads to Class I (or sometimes early Class II before the mesial shift), a mesial step usually predicts Class I or Class III, and a distal step (where the mandibular primary second molar's distal surface is posterior to the maxillary one) predicts a Class II tendency in the permanent dentition.