I watched some Goyu ryu karate videos with Morio Higaonna. In his enbu's he shows finger locks time to time. It looks very efective and could be efferctive in selfdefence.
Some of early judo match rules from Kano and his pupils restricted fingers locks and allowed locking only elbow. It is reason why judo waza ignored these efective techniques.
If you have any sources about finger locks techniques, please post them here.
Last edited by noboru on Fri Dec 22, 2017 11:14 pm; edited 1 time in total