After perusing the boards and seeing how little information and feedback there is on the K95, I figured I would throw my voice in the mix and hopefully give you a qualitative review of the K Factor vs the nCode, seeing as I'm coming from the nCode to the K Factor. I just got done with a 2 hour hitting session with the K factor 6.1 95 18x20. Background: I'm a 5.0 college player, somewhat aggressive baseliner who likes to massage the ball and work a point. The baseline is definitely my forte. I'm coming off a bit of an injury, which kept me from volleys and serves. The K95 was strung with Wilson Reaction, at what I assume is a few pounds above the mid. The string job showed some wear on it, so I wasn't really expecting it to perform anywhere close to my nCode, which is usually strung with Cyber Flash or a Lux / Syn gut hybrid. Because all I really did was groundies, I can't comment on the serve or volleys all that conclusively. Nevertheless, the K95's increased swingweight was evident from the very start. It just felt SOLID. A little more mass in the head and a little heaftier swing was definitely noticeable. However, I LOVED it. As I said, it just felt solid and resulted in a heavier shot, a more confident swing, and even some more control. The forehand was groved after just 5 minuets, and from then I was confidently pounding the ball wherever I wanted. The extra swingweight helped plow through the ball, giving me some great depth and pace. The backhand is a bit of the same. The extra mass and swingweight helped my confidence, and I put that ball on a dime consistently. The extra swingweight was especially noticeable on my running backhands. I always love this shot, and tonight it was going exactly where I wanted, deep crosscourt. Overall, my groundies were groved very quickly, and I thoroughly enjoyed hitting with the K 95. After getting groved with the K95 I picked up my old nCode to see how it compared. I was surprised to notice just how flimsy the nCode felt compared to the K95. It still gave me a good hit, but gone was the punishing thwak of the K95. I quickly switched back. As far as stiffness is concerned, I really didn't feel all to much of a difference. My elbow has proven somewhat sensitive in the past, but the K95 didn't feel significantly stiffer. It is a little stiffer, but not my much, and I quickly grew accustomed to its feel. Overall, I LOVE the new K95. I just ordered 3, and my nCodes are out the door. Wilson definitely gets an A+ for this update, it's worlds better than the nCode.