@Andy600 re: dark footage and clipping highlights.
This is very interesting since I've been struggling to get decent exposure when shooting RAW. I'm on my 3rd camera at the mo for different reasons, I tried 60D, 5D2 and now got 5D3, and sort of expected the footage to improve somewhat exposure and noise wise, because I normally shoot in low light conditions. I usually use metering in still photo mode (spot or partial) and then use the readings in video mode, but the RAW footage more often than not comes out underexposed. I looked at histograms, waveforms and all sorts, obviously trying not to clip anything, that's how I understand good exposure? However, I find myself pushing exposure up in ACR and then deal with the consequent artefacts. I do get ok results and accepted this as a workflow, but wasn't really happy and often thought it's my inexperience in the field that's causing this. Now I stumbled across your post. If i understood correctly, you suggest to overexpose in camera, especially if converting the footage to Visionlog or your Cinelog later, to get as much info in the mids and try to recover highlights afterwards?
Thanks