Snark

Why not just send the suspect books again? I have my Kobo set to Not treat the same title as New, therefore, it replaces what is there. Only if there are major (cleanup) edits, does the current reading position vary by much.
FWIW I frequently despan those stupid- unnecessary spans that set "font-size to 1em and line-height: 1.2" That is the default

for the body), while in fixing typos or other weirdness