Well...actually, I've never played a game with D20s, but I'm REALLY good at rolling low on D6s. Hopefully that skill transfers over to D20s.
However, in Shattered Void, it seems that you're trying to roll in a low zone, not necessarily a straight low roll. From what I understand of the rules, you have to roll under your pilot skill, but as close to it as possible. So...I might still be screwed.