Yes, Damodar prabhu; as HDG, Srila Prabhupada states repeatedly in both the Gita and Bhagwatam; that anyone in the line of disciplic succession, who repeats the mssg of their spiritual master and of the previous acaryas in that line, without changing it, and who lives it, is a bone fide teacher/guru in disciplic sucession as well. Jaya, all glories to Srila Prabhpada, and all his sincere followers!!