I’ve seen this enough times to say it plainly: there will always be a house edge because of come out 7s and the push on the 12. In my experience, no system can remove that edge in craps. What you can do, and I always advise this, is reduce it by taking max odds and finding tables that allow more than 3 4 5x I’ve played at Horseshoe with 100x, and some spots offer 10x. Of course, yu’ll need a bankroll that can actually handle that.