In show skiing the 5 tier pyramid is the tallest pyramid a team has ever done. The weight this pyramid puts on the base skiers is extreme and so only a few teams have ever put one of these up. At show ski nationals (August 10-12) 3 teams put one up. There are pyramids with more skiers, a team put 44 people in a pyramid behind one boat at the tournament but the 5 high is still the ultimate pyramid goal for teams.
This video is a first person view from the top girl on the pyramid using a Go Pro camera.