TurbulenceFD Render Engine For Tutorials

With Redshift becoming integrated…well at a price, into C4D I was wondering what most members would like to see. I have a major scene tutorial on the go and would like your input on whether I should be doing it in RS or AR/Phys ? I may well do several versions perhaps a version bundled with my full tutorial set ? I will of course include a TFD overview. Redshift seems the way to go but I am sure there are many who are sticking with AR/Phys…your views ?
Here is a link to my tutorial set which of course is still very much applicable though I will off course be doing a new set for the upcoming TFD 2 https://store.payloadz.com/details/2605809-software-training-turbulencefd-tfd-for-cinema-4d-fundamentals.html