Hey JD,
Thanks for that!
I ended up doing the test. We are using XDcam.
I checked the difference between transcoding to DNx120 vs DNX185 and they native XD CAM.
As you said, there is a difference if you blow it up 8+ times where pixels are quite visible but it does not make a difference for the client. I run it by the online editor too and he seemed happy with it.
Cheers