You don't want to play both teams because you would pay double vig.
So you would have
1 unit on S4 (A Bet) Maimi fade: Cleveland.
2.1 units on (B Bet) Cle fade: Miami just play 1.1 units on this game instead of 2.1 and don't wager on Miami at all but keep track of it. . . . right?
If Miami wins you play the S4 "B" fade game for the normal amount. If Cleveland wins play the normal "C" amount.
What you don't want to do is place 2 bets on opposite sides as the book wins and you are paying twice.