Originally Posted by spacediver
if ultra low string tensions are so good, how come they haven't been used in the past?
They were used in the past in wooden racquets. With graphite, I'm not sure how syn gut or natural gut would be at these low tensions. The use of poly as a string material definitely makes low tensions a realistic option.
Poly is stiff before you string it, while you string it and after you string it. Even just holding the string, so at 0lbs, it is stiff.