Originally Posted by Max_501
Find a used Skier's Edge.
Originally Posted by SkiMangoJazz
interesting ideas! As to the Skier's Edge Max, I owned one and sold it. I didn't find it having a lot of similarity to skiing honestly, certainly not to mogul skiing.
In keeping with the original topic, to create a machine that simulates flexion / extension, while working on stability with the core, there is no better machine. I've heard it so many times before that people don't like the skier's edge, or don't feel it does a good job of simulating "real" skiing. IMHO, that's completely ridiculous.
Why re-invent the wheel? The skier's edge certainly can accomplish all that you are looking for, and more. The key is that you have to learn how to use it, and it takes practice and time. I've put some of the best J1 skier's in the country on the skier's edge for the first time and they sucked. Jerky, un-coordinated and unbalanced. For an expert skier, it takes concentration and 4 or 5 sessions to really get the hang of it. And it helps to have some coaching.
Unless you can "make turns" on the skier's edge, without using the poles, holding onto a small ball, or medicine ball with slightly bent, outstreched arms while keeping your upper body, perfectly still and level, then you can't even begin to comprehend or deny how great a training tool it can be.
Get a skier's edge and practice.