260K give headroom for other files in use at the same time:
FONTS, IMAGES, STYLESHEETS
a 260K and a detailed MAP.JPG can choke things.
If I leave a 'boxed set' intact. and later revisit where I stopped, it takes a lot longer to start up and find that place
No! I have not bothered to try find the real larger sweet spot. It works. It is rare I have to do a manual 'chapter' break up. And I am pretty sure that book WILL run on any device I have.
