Pico Mounting SD Card

[Roberthh]

No. One would use flush() in a sequence of writes to ensure, that all data from the cache has been written, but the file should be kept open for further writes.

[jcf]

For my Analog logger project I always use this sequence:
- open file
- write data
- close file.

The idea was to avoid corrupt files.
Is there any inconvenient when doing it like this with an SD card?