gramie parent
That reminds me of using Twister, that optimized the position of sectors on the floppy disk to minimize seek times and speed loading dramatically (and I think they squeezed a few more sectors onto the disk so that it could hold more -- maybe more sectors on the outer rings of the disk?).
normal 720 K floppies were very generous with the sectors on a track. It was easy to format a floppy with 10 sectors per track even without reducing the gap between sectors. On Atari it was almost standard praxis which made that floppies had generally 800K capacity. It was even possible to squeeze 11 sectors per track by reducing the inter-sector gapto a minimum. Furthermore, most floppies allowed to write on track 81 and 82 (sometime even 83). So it was possible to have floppies with up to 902K capacity (not a good idea in the long run, I recently tested such a floppy I had made 30 years ago and it had a lot of read errors athing that 720K and 800K do not).