So, let's say there are 45 green cards in the cube, we have 43 white + 45 green + 2 g/w hybrid cards = 90/360 = 25% of all cards (ignoring colorless cards and lands) are in your colors as a g/w drafter. The b/g drafter, conversely, has 47 black + 45 green + 2 b/g gold cards + 2 g/w hybrid cards...