Long post, by I had to get it out of my system I've been using Volkl C10 Pro for many years, and in the past six months I have been searching for a replacement/upgrade racket. I figured it was time for a change. This was mostly for two reasons. First I started playing tennis a lot more, and participating in USTA Leagues (4.0 Level), which means longer and more grueling matches than during casual play. Second, I've started taking lessons and as a consequence, incorporated more spin into my ground strokes and serves, which is more challenging with a heavier racket. I've noticed that C10 was a bit too heavy for me, and my racket speed noticeably slowed down (on overage) as the match progressed. I figured I needed a change, I figured that I could find a lighter racket that would improve my game. So, I've started trying lighter "players" rackets, like Dunlop 300, Head Radical, BB London, etc. No matter how much I tried to like them, I noticed significant issues during volleys, returning heavier serves and ground strokes. It was easier to hit topspin ground strokes and kick/spin serves, but that was about the only improvement and it wasn't enough to make me like the lighter rackets. Also, after reading these forums, I realized that most people were customizing these rackets, by adding weight, almost to the point of negating their lighter weight. Indeed, after trying customization, I did like them better, but then, I thought, what's the point? I might as well get a heavier racket. Basically, anything lighter than ~11.7 ounces didn't seem solid enough (too much wobble on off center hits, poor feel on drop shots, less penetrating volleys, issues with heavy ball, etc.). Another issue, that I thought was due to heavier C10, was that I started to feel some elbow tenderness. However, with lighter rackets, that didn't improve at all, in fact, I started to miss the flexy feel of C10. So, I think it was mostly due me playing a lot more. I cut down a bit on my playing, to allow time for healing and that helped. However, before I realized this, I settled on a heavier and arm friendly racket ProKennex Ki 5. While it felt good on the arm, I lost my ability to make great drop shots and volleys and the racket feel was pretty bad, very muted. I didn't enjoy it at all, and after playing with a for a few months, I decided it was time for a change. Now, you might be thinking, stupid me, why didn't I just try Volkl replacement in the first place. Well, I don't know, I guess I got into a racket research frenzy, and wanted a change, to find something new and exciting that would change my game. However, after much frustration, I just decided, without even a demo, to get the Power Bridge 10 rackets (the fact that they were on sale also helped my decision). Anyway, after hitting with it for a week, I am in heaven. Seriously, it's as good as C10, but better. The great feel is back, the touch is back, the precision and stability on off center shots is improved (I think because of 18/20 string pattern, new technology, slightly stiffer loop). Sure, the spin is not as great as some lighter 16/18 rackets, but to tell you the truth, the difference is negligible, and everything else just feels awesome. I am enjoying playing a lot more, and I am regretting ever doubting that Volkl is the racket for me. ALso, during this whole process, I started working out more, and heavier racket is no longer a problem for me in the long matches. So, for C10 users out there thinking of an upgrade, don't make the same mistake I did, make sure to try out the newer Volkl rackets first, there is nothing like them. BTW, I found that Wilson NXT Tour (and similar) and Natural Gut brings out the best in these rackets. Now, I am wondering about their Organix rackets, I might try them when the price drops, but I hope for Volkl sake, they didn't mess with the feel too much.