Hi all! Based on the feedback I received about the future of Nextor I've developed a solution for the painfully slow cluster allocation process (AKA writing to files) in FAT16 drives with little free space. Basically it's the Pencioner's idea of storing the number of the last allocated cluster instead of starting over the search every time, but extended to cover the case of freeing cluster chains (AKA deleting files).
So for now here's a pull request with the code changes for anyone willing to review it: https://github.com/Konamiman/Nextor/pull/68
In a few days (hopefully) I'll publish an alpha of a v2.1.1 including the changes. Messing up with the FAT is not a joke so I'd prefer this change to be thoroughly tested before publishing it in the form of a stable version.
So it's time to wear your reviewer hats, and stay tuned for the time to wear the tester hats!