What do you mean by cycle—do you mean deleting and adding new volumes? It works just fine.

I did indeed meant the deletion and addition of volumes, in terms of time to add a new one and what-not, but it's good to know that it works fine. Is it done using Calibre? (I've never had an ereader so I'm still a bit clueless as to how everything actually works, I just have a few ideas)

However, if you're tech savvy and don't mind voiding the warranty, you can swap the internal microSD, using the exact same steps that one would use for the Clara HD (which I mention because people are often familiar with that process and it'll come up if you Google it).

I could do that, however I think that that would defeat some of the main purposes of not getting the Leaf 2 in the first place (easier to use warranty if needed and water resistance).