difficulty plus execution linked to videos of Olympic gold medal gymnast Amy Chow doing drills for pole vault. (She did compete pole vault, but not in the NCAA.)
Many of the top female pole vaulters are former gymnasts.
Click PLAY or watch Amy swing Rings on YouTube.
more – difficulty plus execution
Wikipedia says Amy is currently a pediatrics resident at Lucile Packard Children’s Hospital at Stanford.
Gymnastics Coaching.com 