A client of mine, was using a Triad 4.0, decided to pick up a Steam 105s. I was surprised that the 105 is lighter than the 99s, even though it has a thicker beam. He also opted to use Lux 4G at @ 62 lbs. This is going to be fun. BTW I recently picked up the 99s, and it's a fun racket to hit with. Though I have not played a real match other than rally and hit a few serves.
Machines: Gamma 6004 2-point w/ Wise 2086 & Babolat Sensor Dual