We bombed the sledding hill at Allegheny one year on my father in laws toboggan , there was 5 or 6 of us on it . Right about the time i thought we were going to fast to be safe ,we hit the part that gets steeper . We skipped off the bumps until the timing lined up and we launched one ,there was a collective "uuuhhhhh" from the sound of everyone exhaling at the same time and then it was just snow,sky,snow,sky etc. until it was done . Good times.