The Left/Right Hand Technique, when you think about it, is all about focus. It takes focus to have your left and right hands doing two completely different activities simultaneously. That's why supremely focused people such as Gwok Jing (who became Mongolia's greatest archer next to Jebeh) and Little Dragon Girl (who could endure long periods of isolation without any detriment to her mental health) were successful at it while notoriously unfocused people such as Wong Yung couldn't hope to learn it. That being the case, isn't it extremely unlikely that Chow Bak Tung would be able to use the Left/Right Hand Technique...much less CREATE it? Chow Bak Tung had the attention span of a toddler with ADD. There's no way he had the focus to use something like the Left/Right Hand Technique.