In the 1940s he studied with the leading Vajrayana masters from all over Tibet, and continued receiving transmissions from the Gelug, Nyingma, Sakya and Kagyu schools. He developed a reputation during that era as being a Rimé master "par excellence" and many of the new generation of Lamas who would bring Tibetan Buddhism to the West began to see him as their master. Thus he became a teacher and guide for Dilgo Khyentse, Jigdral Yeshe Dorje (2nd Dudjom Rinpoche) and Sogyal Rinpoche. He was a major influence on a very young Chagdud Tulku Rinpoche, who first met him in 1945, and he is also mentioned with awe by Tulku Urgyen Rinpoche in his biography.