Only time I make adjustments mid air are when I come off wrong or I need to work a different line to get around traffic. We do have a 90 degree step up on the current layout that I have to make corrections on 7 times out of 10 attempts, about 1/2 of those attempts will get me what I'm after, a couple more close enough, and I'll screw up a couple. A few layouts back, there was a jump that you would have to "whip" every lap if you wanted to get through the section quickly.