@Horton perhaps look at it through the lens of a beginning slalom skier. 2 years ago, I was at @theboardingschool and Travis has a handle attached to a post that I was using to stretch. Freddie came over and worked with me on my positioning, more specifically, getting my front knee more over my toes while maintaining my hips and chest in proper position, while trying to stay in a tall position. With the ability to stay in static position, you can really isolate each piece. It was a great coaching session for me, and we were just hanging out having a beer at the end of the day. It just clicked being able to experiment moving forward and back, proud chest and clinch your butt cheeks! I thought with this type of device, it might more accurately represent your position on the water.