7.1 is what my SE runs. I *think* the 40MB drive does contain Word 5.1 or 5.1a.

The 512Ke does run a little quicker under 6.0.7 (actually the System 7.0 Disk Tools disk, which happens to also be the 6.0.7 Utilities 1 disk, just renamed), except for the fact that it's booting off of a floppy.

-J