The addition of the ninth Mana Sphere wasn't as much of a challenge as Shingi had thought it to be. After curing his Spirit Madness, his control over all the Elements had increased, but he didn't expect it to that degree.
Usually, when he added a Mana Sphere after the eight at his training, it took him at least half an hour to move all the Spheres at a decent pace. But it took him almost five minutes this time, but he wasn't still controlling them perfectly, but he moved closer to it faster.
Considering it was of an Element still not part of his Mana Tree, his MANA MANIPULATION had improved more than he thought. He kept improving his control for close to an hour but then told Syra to take a break. He hadn't still perfected his control with all nine Mana Spheres, but after noticing his current improvements, he wanted to test a few things first.