Final Writer is arguably the best word proc on Amiga. You are right, Softwood only updated disks 1, 8, & 9 for most releases.
IMHO, Release 5 was the pinnacle of usability. The next, FW97, added features that caused strange behavior, though it was functional.
According to my disk collection, FW97 only updated disks 1 and 8 (not 9). Your listing seems to match mine.