Let's put it this way, as far as SAM Putt goes, if you as a teacher see a high consistency score, be careful with what you work on with that student because whatever they do, they do it well. Generally, with most students, the consistency is low, hence they want a putting lesson. By helping the student become more efficient with their stroke, the consistency increases. No doubt there is repetition involved, but point is, there is a reason for a sound motion and ....wait for it.... fundamentals.