Hockey players frequently make great golfers... but it can be that way with many sports because the basic throwing or hitting motion is to start the engine from the ground up on the downswing. If you analyze a hockey shot, the lower body opens the same way it does for throwing or hitting a baseball, or shot put, or ad infinitum. The thought of the hips first sliding and then opening is (in my opinion) not a good one since the motion is all happening together; if you think slide then open, you will be late and weak. That is my opinion and opinions are not worth a lot.