Always.
James had been very satisfied with his Evil Spirit Transformation Ability because he could remain in the state of Evil Spirit Transformation without losing his humanity.
Those eyes allowed him to see more, even more powerful than Spirit Vision.
He had always felt that there wasn't any difference between his vision and that of the Evil Spirits.
Moreover, he felt that his thought process and intelligence had significantly improved.
Externally, this meant he was smarter, calmer, and more rational.
During his time at the Dusk Bell Church, he had obtained a lot of useful information, and nobody had noticed anything unusual about him.
Of course.
His intelligence told him that the Dusk Bell Church knew about his undercover identity.
The information he could get was what they allowed him to have.
James cautiously survived within the Dusk Bell Church, maintaining a safe distance from the organization's bottom line.