The fact pro level cameras like my 1 Series have two card slots is for the exact reason I stated. The fact you can save to each card is for the same reason. The choice to use smaller CF cards and switch them out is again for the same reason.
Saving raw + jpeg is pointless and wastes space and probably why you like large CF cards. Again lose of a photo or two or even an entire CF card is a simple inconvenience or minor disappointment to you. It is not possible or acceptable to a person like me when your job and reputation is on the line. I have done a career that has worked for me and you are doing what you deem is working for you and that's OK. It is not what I would or will advise new or even advanced people to do.
09/26/2023: New firmware updates are available.
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.