The grappling technique that he had decided to call Thundercoil was very simple and did not require much complex theoretical sophistication.
The whole concept of the technique was to add an electric buzz to basic grappling combat. Meaning he didn't need to do too much.
The few things that did require adjustment and practice were maximizing surface area contact with his opponent to maximize the current.
What he needed to do was to reinvent some of the basic maneuvers keeping that condition in mind.
This part took him back to his days when he trained in jiu-jitsu and judo with his siblings, and then later on in the Martial foundation. It was just relentless practice of basic moves until it got hammered into his soul.
It was simple and straightforward unlike most of his techniques. Most of his techniques had complex mechanisms and systems of function. Especially techniques like the ODA system were among the most complex techniques that he had ever created and seen anywhere.