So I have basically highlighted two locks for this week, PHI -6 and Jacksonville +7. I plan on make three 4 team parlays and including these 2 games in each one of them. So here are the 3 I will be picking tomorrow afternoon, Id like a critique if you think Im making horrible decisions

Card 1
Jags +7
PHI -6
NYG +3.5
BALT -6.5


Card 2
Jags +7
PHI -6
CHI -3.5
STL +4.5

Card 3
Jags +7
PHI -6
CHI -3.5
NYJ +5.5

Alright, I am seriously debating playing AZ -4.5 on card 3 so I know I could have one winner if my top 3 hold? Is this a proper way of thinking, or does this do what I think it does, make you wager twice as much to win the same amount?

On another note, I am actually starting to like sportsbetting more than poker, we'll see after this weekend tho, Im gonna have a lot of money in play.