Interesting indeed. Does he have a correct understanding of the facts?
1. He says the tax thresholds are $206, $226, and $246, with tax rates of 20%, 32%, and 42.5%.
2. Suppose you pay $256, which would be $10 over the top threshold but $50 over the bottom threshold. Is his understanding that you'd pay 42.5% only on $10, 32% on $20, and 20% on $20? Or would you actually get docked for 42.5% on all of the $50 that's above the original threshold?
I assume he's right, just wanted to make sure it doesn't have sharper prohibitions on clearing the 2nd and 3rd thresholds.