More than a month had passed since Rui began training the Godspeed technique, and Rui marveled at how different it was from any other breathing technique that he had ever mastered.
It was the only technique that placed greater weight on the frequency of breaths and on the quality of exhalation compared to other techniques that focused more on the timing of inhalation. The timing of exhalation mattered a lot more with this technique than it did.
The first thing he discovered was that it was incompatible with his other breathing techniques, of which he had three at the moment.
Final breathing, Wind Breathing, and Gale Force Breathing.
He discovered that their timings clashed and that there was no way he could use any of them with the Godspeed breathing technique simultaneously. It was why he felt it was difficult to integrate it into his muscle memory, but he persevered.