There is a great article online at Tennis Magazine's site (http://www.tennis.com/yourgame/gear/general/general.aspx?id=45730) that is an interview with Roman Prokes. Here are a few of the more interesting bits: How heavy is Sharapova’s racquet? The unstrung weight for Sharapova is 320 grams [or about 11.3 ounces]. Everybody measures in grams because ounces aren’t exact enough. She used to use around 300 grams [or about 10.6 ounces] before. For the most part women like to use lighter racquets because they play with longer racquets. I noticed Lindsay Davenport has a cubby hole along the wall. What are the specs on her racquet like? In a way she’s similar to Maria. Longer racquet, 27.5 inches actually, a little bit lighter at 301.5 grams, and noticeably more head heavy. So when you swing the racquet around it doesn’t seem so light anymore. Having a head-heavy racquet could make you late on the ball if you play on a really quick court. If you’re looking for stability you have to balance the weight out. If you add weight to the head, then you have to add to the handle is well. Otherwise it disrupts the balance. Which pro you work with uses the longest racquet? Marion Bartoli’s racquet is 29 inches. Incredibly unusual. If you watch her play it makes a little sense she uses two hands on both sides. Should players use the heaviest racquet they can comfortably handle? One hundred percent. You just can’t overdo it because it will slow you down. But as heavy as you can handle. I would say we add weight to 9 out of 10 racquets here. Which pros use particularly heavy racquets? Most of the older generation of players like the racquets pretty heavy. Tommy Haas and all those guys. Heavy, more evenly balanced racquets. Haas’ racquet is 352 grams [or about 12.4 ounces] unstrung. Same with John McEnroe. Who has the heaviest racquet? The heaviest frame I use to do was for Gabriela Sabatini. It was over 400 grams [or about 14.1 ounces]. Mark Woodforde was incredibly heavy, and Thomas Muster was incredibly heavy. They played a little bit over 400. What about changes in grip sizes? In general, players are using smaller grips than they used to. The way they hit the ball, you can come over it much, much more. Any player that you work with who is pretty big in size, but uses an unusually small grip? The smallest one was Guga Kuerten. He played with one that was like 4 1/8 inches. He actually wouldn’t use a grip—he would just use three overgrips. He would have a bare handle and wrap three super tight overgrips on it. Spanish players in general, because of the way they play on clay courts behind the baseline, a lot of them play with small grip sizes. Anybody use a 4 and 5/8? Mike Bryan, but not many else. What about Agassi? Andre uses 4 and 7/16. What about the weight of his racquet? 340 grams [or about 12 ounces]. And the strings? He uses all Luxilon. It was in Rome, about five years ago between the first and second round, and I had talked to him about Luxilon for some time, that he told me he now wanted to try it. I told him it probably wasn’t the best time.