Because he had studied the Flowing Light Sword Technique, Zhao Guang had gained a deeper understanding of the flow through the meridians.
Teaching others and conducting experiments could not compare to the intuitive understanding one gains from personal experience.
If he were willing, Zhao Guang could now completely rely on the True Qi Cultivation Method as a basis to create more intricate cultivation techniques. However, it seemed there was no immediate need for such developments.
After all, on Earth, there were only a few practitioners at the Energy Introduction level, and not in great numbers.
To truly bring out the power of these cultivation techniques, it would not be feasible without reaching the Divinity level.
Certainly, there were some low-level techniques available, but those he had previously provided were already sufficient for their use.