Strategies are just the calculated outcome, but we don't know how far the expectation gets fulfilled. It needs luck. In such situation I'll go with the minimum bet value for the maximum outcome, because I've experienced massive losses going for roll above 2 and the dice rolls within 2. Gambling is all about luck and strategies are just a way to keep ourselves positive on the outcome. The strategy that worked for our friend won't be successful for us, which is the reality we need to understand.