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It's somewhere in the main superthread. Basically we've been color grading Slog/Sgamut the wrong way all this time. We knew about it but we didn't have the tools to do it better (poorly graded F35 footage looks salmon-ish, but it shouldn't). The newer methods involve either shooting in F900R color space or applying a good Sgamut to rec709 color space conversion (the sony one might be mathematically correct but it doesn't look good).
F900R color is better than sgamut? But how? sgamut is wider range. F900R color is like rec709 color, no? What is this good Sgamut to rec709 color space conversion you talk about?
Sgamut is wider, but for that same reason it can be a problem. All your monitors and your client's monitors show rec709/srgb colors. Therefore there's a bunch of colors you are not seeing. Same as if you were processing photos in adobeRGB and displaying them in sRGB. Since you're missing colors (mostly the most saturated ones), you either end up with a dull image, where there's little color separation (salmon-ish monocromatic footage) and/or you boost saturation in post and then the whole complimentary gets messed up, and some colors might even clip.
If you're a high end lab that can work in wide range color spaces and you have the tools to do proper conversions, then it's definitely better to use Sgamut. Since you're in this forum I'll assume you don't have a big lab backing you up, therefore you'll probably get better results if you shoot in the same color space that your displays work, ie: rec709. If you still prefer to shoot in Slog, at least use an Sgamut to rec709 conversion in your workflow. But I haven't seen any good ones yet for Davinci and again, unless you're going to film print or DCI there's no advantage really in doing this.
Here's an Sgamut to Rec709 conversion for Davinci if anyone wants to try it out.
https://www.dropbox.com/s/yqozw6tnsz8qist/S-Gamut > Rec709.cube?dl=0