Happy used a total of forty minutes to circulate his qi through three full circulations using Tendon Changing Classic. It caused Happy to be unable to help but remember the situation when he first used a qi cultivation technique in the game. His rewards were great, and he obtained quite the pleasant surprise during that time.
It was the same for Happy during his first circulation of qi using Tendon Changing Classic this time. Even though his qi was already at 603 points, causing the increase of his qi using this classic to be insignificant, since the training requirements for Tendon Changing Classic was very hard, the effect of it widening his meridian system when his foundation for everything had already reached two hundred was incredibly clear. During those forty minutes, it had actually helped Happy increase his qi by slightly over three.
Also, even his Affinity and Arm Strength had also increased by one, and his Comprehension also reached a breakthrough.