The present paper reports on a two-year study of a self-study research group facilitation. The pedagogical rationale of the facilitation consisted of four pedagogical principles that served as the theoretical background for the actual facilitating actions and interventions. This was highlighted by formulating these principles as a series of propositions providing clear guidelines for the authors' interventions. The interpretative analysis served as an analytical refinement of these propositions, resulting in a number of amendments to the original phrasing in terms of conditions for successful facilitation of professional development. The authors conclude that contextualized analyses of cases such as these provide exemplary illustrations of what the enactment of general principles from the literature in particular instances of practice might look like and what factors influence that enactment and the possible outcomes.