Just to be clear, when I switched from C1 to DT, I developed some styles to emulate C1 colors, which I found to be pleasing, not OOC jpegs. They are very different!
Having said that, for the A6000 the only style I have done is the one I posted above.
For the A6400 I have done more styles, using different combinations of tools, here below listed in pipeline order:
- unbreak input profile + input color profile with C1 icc + tone curve - default module order, similar to the A6000 posted
- unbreak input profile + base curve + input color profile with C1 icc - custom module order, this is the most accurate color match
- filmic rgb + color look up table - custom module order
When coming to scene-referred vs display-referred workflow, as I said the C1 color profile contains a non linear tone curve, plus it requires the module unbreak input profile, also non linear. Therefore using it is incompatible with the scene-referred workflow, which is supposed to be linear rgb in the pipeline until reaching filmic.
So, of the three above, only the last is scene-referred compliant, where the C1 color emulation is done through a LUT after filmic, so it is treated as a pure artistic color grading. It works in normal conditions, but it is not guaranteed to be 100% equivalent.
As I said, after the switch, I learned to do my own color grading in DT scene-referred and I no longer use those styles, but if anyone is interested I can post them.