When I mentioned doing this a while back in the context of the R3 (if the slower SD card limits my shooting speed in writing RAW to both cards, I planned to write only to the CFe then copy images to the SD during down time), it was also met with surprise by some.
This is of course also clever and can save money, because UHS-II also costs more. I am very satisfied with my Kingston Canvas React Plus, which offer good value for money.
Then it seems you skipped something important to you. One of those ‘if you don’t know it, you don’t know you need it’ things.I actually read the user manual, but I skipped the blue part. I was more interested in everything else
I confess that I discovered how to copy by browsing the menus not the manual. I tend to subscribe to the school of "When all else fails, read the menu" and like learning by experience. It all began with going from an IBM PC to an Apple Mac+, for those who are old enough to remember the introduction of windows and logically intuitive software.
I tend to read manuals for relatively complex hardware items, like new cameras and new cars. There are often new features that weren’t on previous models, and the manual is a good way to learn about them.
The solution to my little problem was so simple, and just didn't know (despite always carefully reading the manual...)
RTFM is useful, to say the least - especially for driving a car when learning by experimentation can have rather unfortunate consequences! It's just I've always liked learning by osmosis, picking up bits and pieces here and there and working out things for myself rather than going through a textbook from A to Z. It has allowed me to do new things in research because of not having a preconceived approach. But, it's a very dangerous path.
