Is string suspension the "holy grail" of tennis racquet design? Considering the 100 year long history of failed attempts to achieve it in a commercially viable racquet and its potential to transform the foundations of racquet design, it would be hard to argue it isn't. Almost from the beginning, manufacturers have considered various ways to achieve string suspension on a tennis racquet. Some of the earliest patents for improvements to racquets, dating as far back as 1888, inc