Among the two strings, which one would you choose, and why? I've chosen SPPP over Luxilon because it's cheaper, almost plays the same (or maybe it's just my mind -_-), and a friend of mine has a reel of it to use for stringing. I've been thinking of using Prince Topspin because of wow, the topspin I was getting with it. I borrowed by friend's Babolat AeroBlast w/ the Prince Topspin strings on it, and wow. My serves never kicked as easy as that. xD =] if you can, please compare and contrast both strings and the pros and cons (like power, spin, DURABILITY, and cost). I'd really like to save money.