OpenColor CDL for color correction

Trying to improve the default color correction control when working with 10bit or higher images and videos. In particular the default Brightness control only seems to flatten and washout the image.|

Instead I was thinking of using the OpenColorIO TOP and adjusting Power and Slope CDL parameters instead of Gamma and Brightness repectively.

Are there any OpenColorIO experts here who might be able to suggest whether this is a good approach?