I run a speed rainbow with the same concept for getting quanta - entropy mark with snovas. I find that having 4 snova and 2 regular nova, with 4 qtowers. I find that having a few towers and 2 regular novas is perfect, the mulligen allows 1 tower 70%+ of the time, and 1 regular nova about 50% of the time in first hand, allowing some starting quanta before your snovas kick in. Its just something to consider with your testing, otherwise, that deck looks annoying as hell. Good job!