Went to the Kwahamot Waterski and Stunt Show Spectacular tonight in Tomahawk, the 60 minute show that's put on 3 nights a week in the summer. I was surprised at their extensive history: they've done over 2000 shows in the last 50 years featuring over 1000 skiers.
This shot is of 5 skiers, 3 going off the jump (one doing a flip) and 2 crossing below all at the same time. Impressive indeed!