So, a father of a junior player was asking me today how I felt about some racquets. Namely, the stiffness index. I proceeded to explain how I had been forced to use more flexible racquets, and was currently using the Estusa PBP (which contains 20% fiberglass construction). "why," he said, "that brings up an interesting point! Ive had a long concern about my son playing with these all-graphite racquets (his kid was playing with a pure drive.....ouch) and how it's going to affect him in the future" He had some interesting theorys regarding the heft of a racquet means greater damage done, which, in theory, is incorrect. I then began to explain how in the days of wood, most people complained that fiberglass was waaaay too stiff, and that using anything but wood would (sorry, didn't mean to "pun"ish anyone) make your arm basically fall off. It was a lengthy discussion, but a rather interesting one. So, I decided to take it to the source, so to speak. How do you feel about Graphite construction? Would you like to see increased usage of fiberglass or even wood (ie prokennex) in future designs?