Code flash blankCheck and post-write delay

Hi all!

I am already using the flash hal with success but, carefully reading the documentation and the examples, two questions posed me:

1. The "blankCheck" API is always used before erasing. Is that mandatory? In my projects usually I never check it because I am sure that the area I am going to erase in NOT blank.
2. In the flash hal example a software delay is present after the write API call. I can't find any reference about it. Is it required?

Thank you!

Cristian