I have both a 3UG5 CP and a 3UG4 CD. The G4 weighs in at 97g with string and overgrip, and it feels very even balanced overall. The G5 weighs 102g with string and overgrip and it for some reason feels just a bit sluggish. If you want pure power, this racquet can generate quite a bit for its time, but at the cost of speed. After I tried the At900P, I've realized that the time of the MP100's has fallen and I personally enjoy head heavy racquets more! If you're given the choice between At700 or the At900P over the MP100 I personally would recommend the those two over the MP100. Some people still swear by the 2U weighted Mp100's, and it really comes down to preference!
I've used both Mp100 2U and 3U, the difference for me was like a whole new racket, then again the 3U was not at my usual tension or string. I've also had the At700 at 3U and i prefered the Mp100 over the At700. It realy comes down to personal preference, you might want to try the racket before you buy it.
