I'm prone to calf injuries, typically "tennis leg" medial gastroc strains. Sometimes the left but usally the right side. Currently I'm using the K-Swiss Ultrascendor (system 7.0). Got them because they were comfortable off the bat, although I find that they are not making me feel that nimble on the court. I suspect that the lateral support could be better, meaning that my calf and upper leg will move before the shoe and foot now respond. THe lag may be leading to more injuries. In any event, I'm wondering if there is a shoe that is recommended for avoiding calf strains? Or if not, one that is known for it's nimbility and responsiveness? Thanks!