Might be easier (faster to implement) for the flex secure.
I think the 64kb was tried early on with the Apex, but i think amal wasn’t convinced of its performance and user experience.
(I think it worked, but the transfer speed may have been a hard pill to swallow)
2 more things…
This sounds familiar…
Re, my Flex Secure comment and 64kb, let me drop a @tac0s here also for thoughts on that.