Hi All, I've been playing for a number of years and have got to good level, but am still playing with a carbonex 8dx (i think), and it's started to degrade. I'm not that experienced with buying rackets and I have looked at a few sites to help, but would appreciate your experienced advice very much. I'm looking for a fast racket that will give me a little more power (as that's where I'm weak). I read that the Z-Force offers help from back of court and great for smashing, but the nanoray 800 is quicker for doubles play. I'd greatly appreciate any rational between choosing between this two rackets. Thanks in advance.