As far as I can tell in Craps you need the 7 as your friend, but at the same time never once as your enemy. That excludes the Do side of things. It also excludes most of the Don't side. The only way you can have the 7 as your friend and never your enemy is playing some variation of the Patrick System or the Ricochet. They are both a grind but truly winning over the long haul is. Whatcha think?