If you like -1, you can make the line by betting some on the ML and some -1.5. It just takes a little algebra, but it's well worth it.
Here is an example:
Sportsbook
White Sox (-132)
White Sox -1.5 (+164)
Take 100/132=.7576
Add 1 = 1.7576
Take 100 and divide by 1.7576.
=56.90
Bet $56.90 at -132 to win $43.11
Bet $43.11 at -1.5 (+164) to win $70.70.
You have just bet the RL -1!
Here is an example:
Sportsbook
White Sox (-132)
White Sox -1.5 (+164)
Take 100/132=.7576
Add 1 = 1.7576
Take 100 and divide by 1.7576.
=56.90
Bet $56.90 at -132 to win $43.11
Bet $43.11 at -1.5 (+164) to win $70.70.
You have just bet the RL -1!