When using Leaf Capture, I choose Product as my develop curve, and ProfotoRGB as my ColorLook.
What settings and where in Capture One to achieve same result...would you post some screenshots, please?
Edit: can one just copy the files from User>Pictures>Leaf images>Leaf Tables into
User>Library>Application Support>Capture One
In Capture One you can select the Leaf Input Profile (or ProfotoRGB) and the Leaf Product develop curve in the Quick tab (and create a "Leaf Product" preset there) and then in the Capture tab, under Next Capture Adjustments, you can select either Copy from Last or Copy from Primary, whichever suits your workflow:
You can also create your own toolset and have both tools on the same tab of course.