Hi, I have a question about science vs. perception regarding which racquets to use. Is there a scientific reason why some racquets work better than others for specific people, or is it all mental? Please note I’m not asking for advice as to which racquet to use, I’ve already made up my mind. I just want to know *why* I did. I know one racquet feels better than another, but I’m sure there’s more to it than that. I’ve been playing tennis off and on for about 20 years now. I use a full western grip, have a long, fast swing. I use a lot of spin, not a lot of power. NTSP of a 3.0. I’m currently using an old, early 90’s Wilson Pro Staff 4.3 si that I bought off of **** years and years ago. I miss-hit 80% of my shots with it. Last night I demo’ed an early 2000’s model Prince Hornet Triple Threat, it must have been 105 square inches or greater. Almost immediately, my pace improved. I went from probably 20% shot completion to 80%. I had much greater control and spin, though my shots were slightly less powerful. The only downside was the grip was too small for my hand, a 4 ¼. I’m a 4 3/8, so my hand was tiring quickly. I also demo’ed a Volkl Power Bridge V1 MP. Everything that was great about the Prince was even better on the Volkl. Every shot was easier, more control and more feedback to my arm. Placement was easier and my serves were much better. Basically, wherever I wanted to put the ball, it went there with the Volkl. I was very confident with this racquet. I couldn’t miss with it. And, it had my grip size: 4 3/8, so it was less fatiguing. The Volkl was the best racquet I’ve ever used, and I don’t know why? I’ve always been a Wilson guy, never even heard of the Volkl before. Why would the Prince and Volkl be so much easier for me to use than my old Pro Staff? Is there science in the numbers (stats for each racquet) that can explain why I can’t hit with the Pro Staff, but am a force to be reckoned with on the Volkl or Prince? My hitting partner said it was like night and day with me. I can think of four things, perhaps they matter? Stiffness: my old racquet is a SI of 4.3, I assume that’s around a 45? I imagine a lot of my power is being absorbed by the racquet? The other two racquets have indexes of around 65 to 68. Weight: my old racquet is heavier than these two. Does 2 ounces really matter? Perhaps for my fast, loopy swing, a lighter racquet is better for me? Head size: I admit my hand-eye coordination is poor, bigger head size = more forgiving. 90 square inches means you have to have to be more precise, right? Perhaps I need to work on that more. Technology: my old pro staff is, well, old. I think it may even be an amateur level, not much technology behind it. But the new Volkl has a lot of stuff going on under the “hood”, so to speak: vibration dampening, geometry, and overall more comfortable. Perhaps more expensive racquets are just better than less expensive racquets? Perhaps I need to end my love affair with Pro Staff racquets. Just because Sampras was my hero, doesn’t mean his weapon of choice is the best for me. Anyway, that’s my story. Thanks a lot Thanks.