Some important comments in this masterclass are: the significance of the first cue at the beginning of the piece -where a brilliant character is required; the connection of the rhythm in the cello part with Latin rhythms (like Tango); and the accuracy of the score.
David Geringas also talks about tempo in the whole sonata, explaining that there is always a connection among movements. Music is always 'crescendo' in the sense of growth, of development.