If an airstrip course is laid out well, you don't have to remember it. You just keep looking ahead and driving it mostly like a slalom from transition to transition. The only thing you need to remember are the "difficult parts". On this course, that was entering the slalom correctly (man, you could fly on the exit of that slalom if you took it to the left!), setting up and SLOWING DOWN for the turn-around, and the two decreasing slaloms on the way back... especially the one right before the finish. The rest was just a matter of looking ahead, thinking ahead and not letting the car get behind.