Remember also, that the memos have no erasures, smudges or strikeouts. The "poor" typist typed them perfectly and centered the first time!
Anybody here actually used a typewriter? How likely is that?
Only if you're an expert typist, or if you precisely weigh every character you type.
I've noticed numerous strikeouts in the military memos I've read in the course of researching Kerry's record. In an informal "for file" memo I see plenty of scope for mistakes.
D