When I went to Toi San in '05 and '06 and met with Jyu Chuyhn's last surviving son, it helped us to learn a lot more about him and answered many questions.
After reading the wiki on Jyu Chuyhn I was wondering how come his surviving son only proficient in Choy Lay Fut style? given Lama is definitely the ultimate system which even Chan Tai San had to wait a long time to learn?