There is a BIG difference between ROUNDED and FALSE. There is nothing deceptve at all here as Heritage is very upfront about it. Just read the message you get when trying to pllace any Money Line bet (on my laptop, displays under intended bet on Bet Slip):
Note: Risk and win are calculated using decimal odds. Due to rounding they might not precisely match the displayed american odds.
And as I mentioned. sonetimes the pennies work in your favor.