"Safe bet" is probably the biggest oxymoron in the history of the world.
That 3 points you just bought leading you to double your stake forces you to hit this wager 66% of the time to break even. If USC covers the 7, they are going to cover the 10, and you'll lose.
horrible bet.....if you like texas that much take the 7 dont give up all that moeny for 3 fricking points......they will either cover the 7 or get rolled by 10+ (my prediction)