Okay, so hopefully the overseas ballots will have the correct postmarks (no later than Nov 6, 2018 from an overseas PO). How many overseas ballots have been received, or are expected? Troops tend to be conservative, so it will be interesting to see which way that will go.
Check this out... https://dos.myflorida.com/elections/for-voters/voting/military-and-overseas-citizens-voting/
It appears that although "early voting activity reports are available to the public", "Vote-by-Mail requests activity reports are only available to statutorily authorized persons and entities." That sounds like the perfect recipe for ballot-stuffing.