Review (4/5): Useful
I have used Bullworker, or like exercisers, for twenty years. My Dad's best friend carried a Bullworker with him around the Middle East working for Bechtel. The Iso 7x is obviously another brand of the Bullworker. I have had several Iso 7x. I usually have one in my classroom. Usually a student wants one. At the end of the year I give him/her mine and buy another. Personally I prefer the nylon strap over the cable. I have had one break, fortunately at the time my reflexes were still good, I avoided any injury. I think the key to these type of exercisers is using the isometric option. Isometrics are effective and using this isometrically is your best option in my opionion. A seven second push or pulled hold is good. If you are having wrist pain, or other physical issues, back off on your compression. I believe building strength with the Iso 7x helps build strength for skiing. Enjoy yours!