The whole concept of craps obviously (for right players) is to avoid the 7 after the come out roll. Even on the come out roll, which is really no different than any other roll as far as the odds for a 7 showing, is a factor in my method.
I do not play the pass-line (except when I am shooting because I have to)
I place 3 units each on 3 numbers (a unit can be as low as $5 or as high as you want to go-for this example we will use $5). I bet on what I call either down-town, 4,5&6, or uptown 8,9&10. You now have $48. action and I have the bets working on the come-out roll.
On your first hit, you bring everything down to 1 unit each, leaving $16 on the board. Taking in either $21 on the 5/9, or 6/8 and $30 on the 4/10, leaving you with a net profit of $5 or $15, depending on which number hit plus all the money on the board is the house's money.
What you do from here is entirely up to you according to how aggressive or conservative I am aggressive and with each hit I will increase a unit on the opposite number, i.e. if a 6 hits I bet 8, if a 9 hits I bet 5, etc. When the numbers have two units or more I will press 2 numbers 1 unit each. if 4 hits bet 1 unit more 4 and 10.
Obviously the exposure is before the first hit, anything after that you are using the casino's money.
The reason I do not play the pass-line is that the return, even with back-up odds, is less than if you put that full amount, (pass-line bet plus odds bet) directly placed on the number itself.