You still may want to consider using Protune. The files are captured at a much higher bit rate, they are not as compressed as much. The benefit is giving you considerably more exposure latitude. Darks will have more detail and lights will as well. If you don't want the hassle of color grading you can still use the GoPro color option. This will give a basic color grading with the higher bit rate. It really is a win. File sizes will be higher so if you have a smaller card that could be an issue.