I have a Custom Look - which I name Torcelllo-Rostami Xtra TS1. I append two pictures - one where I adjust the Impression settings alone; and the second which has the same Impression settings, but I move the AI Remix Opacity from 100% to 50% - and then back to 100%.
As you can see, the results do not marry.
This Custom Preset may be found in my DropBox
Impression Settings Adjusted - AI ReMix Settings - no change.
Impression Settings Adjusted - AI ReMix Settings - dropped to 0% then back to 100%