hi Chris, just wondering how you would compare these 2 frames, especially if you have had the chance to hit with the volkl c10 xtended? I'm referring to the original version of the tfight 325 XL that has a stiffness rating of 59, not the vo2max version that was much stiffer. I've read your previous glowing reviews of both frames. I'm interested in your thoughts are with respect to: stability, plow-through, spin generation, volleys, ground strokes and feel at impact. thanks!