How Do You Adjust Kerning/ Character Spacing of Text on a Curve?

In X8 these tools seemed to work differently.

Here's the Character Spacing Tool:

Heres the Range Kerning Tool: (use on the "T" character only)

It seems to just make the tracking of the text swished on one side and thats it.

I want to make the spacing of the text near the top closer to the spacing of the rest of the text. How do I do that?

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