Li Pin's understanding of martial arts and force might not have reached the exaggerated level of proving something once and proving it forever, but with his precise, minute awareness of his own condition, once he struck out with Gang Jin and left that memory in his body, it was basically equivalent to mastering the ability.
All he needed to do next was use his "talent" to recreate that sensation. Striking out with Gang Jin a second time, a third time, even a tenth or thirtieth time, was merely a matter of time.
Under such circumstances, it could be said that he had already mastered Gang Jin.
Although it was faster than he had expected, it was not particularly outrageous.
In the past, he had never possessed a top-tier inheritance like the Five Elements Body Refining Technique, one that pointed directly toward Gang Refining. He had relied entirely on feeling his way forward bit by bit.
Now...
Not only did he have an inheritance, he also had the talent to gain Insight into every minute change within himself.
His cultivation efficiency naturally rose dramatically.
After half a year of hard training, reaching the Gang Jin level was entirely reasonable.
After all, in his previous life, he had already been able to strike with Dan Jin, equivalent to being half a step into Embrace Dan. Cultivating Gang Jin now merely meant crossing a single realm.
If one wanted to argue the point, martial artists with connections could be evaluated for an Associate Senior Title once they reached Dan Jin.
As for those without connections, even Gang Jin would not earn them a Senior Title. Only after truly tempering their internal organs and entering the Gang Refining stage could they pass the Senior Title assessment.
Before that, they would still be rolling about