I'll be honest, I dumb lucked that landing. It wasn't even a super great run before that. I was trying to do proof of concept that it could actually be landed as I launched past it the first time I ran it. I think about 67 MPH aiming to the left of the checkpoint will land you there. The problem is getting the speed right because even if you watch it perfectly, the tires lift off the ground in that corner, causing the displayed speed to spike.