To all Head experts, I have some questions about the Silver/Green Head Prestige 600. I just got my hands on one of these beauties and strung it up yesterday with some polyester strings. The frame did not come with a leather grip but had a regular replacement grip on it. After I strung it up, I put two overgrips on top of the replacement grip. When I weighed it, I was surprised to see that it came in at only 12 1/8 ounces. That seems awfully low, considering that I put two overgrips on it. From the limited information I have about this racquet, it seems that the strung weight on this frame should be approximately 12.3 ounces. I do not know whether this frame came stock with a leather grip. However, even taking into account the loss of weight from the leather grip, I think two overgrips should bring it close to its normal weight. Also, the frame came with the original green grommets (not caps). In addition to the weight, the frame feels very head light (around 8-10 points). However, for whatever reason, it does not swing too light. My normal frame is the 90 series Wilson racquets, so I am used to heavy frames. This racquet feels slightly lighter than those frames but still pretty close. Can anyone with some experience with this racquet explain to me why the frame weighs so little? Also, if anyone knows, what is the flex of this frame? It feels stiffer than 60RA, more around 64 (that might be the Twaron I am feeling, though). Also, I don't think this is the case but does anyone know whether they made fake ones of these back in the day? The only other idea I have is that this frame might be pro stock. However, it does not have any unusual markings on it, so I have no way of knowing what it is. Thanks in advance to anyone who can shed some light on my questions.