I played this (casino) and made a NICE profit. One or two of my ideas but I changed it up a bit just to "see" if it would still hold up. I tracked all numbers until only one left unhit. This took around four hours. Instead of using a progression on it, I used $15 units. Betting for only 36 spins (still write down all numbers). If I get a hit ($525 gross) , I look back and find the NEXT furthest back unhit, start over. If no hit after the 36 spins, I take the loss, $540. I DO NOT use that number again for the rest of my stay. I look back and locate again the furthest back unhit, start over. If you feel a number might not hit for 400 spins, this eliminates the thought of my entire BR busting if using a progression. (around 3K). Of my 9 numbers bet, 3 did not show up within the 36 spins. 6 numbers DID hit with an overall NICE profit. Will I play it again? Not sure but I am glad I gave it a shot. Ken