Yes, it's been asked and answered a million times already. Spend a little time reading the existing posts. In short, it depends what you want to do.
A lot of people advise a "flat look" for grading, but I just can't see it in the numbers or results. Reducing your output levels will result in color or luminance quantization. This might be useful for strong dramatic LUT results but does not render a faithful scene well at all. Destroying color data to flatten it, then trying to achieve accurate color later, is not going to work. Reducing sharpness on the Mavic in particular will engage an anti-noise function and create overly compressed fuzzy trees.
My advice is 0 or +1 for sharpness, so as to avoid the noise-reduction and over-compression of the data; you need to keep the existing edge data if you want details in the final video. My advice for color grading is to find the built-in profile that most closely matches the look you want to achieve in the final, and then use a gentle hand if you edit colors in the video production.