I use the Tour 95 Vortex and I absolutely love it.
But I am very intrigued by the 99s. I have bought one and I cannot wait to try it.
From holding the two sticks side by side I can tell you that the Wilson feels very hollow.
All of the non tour Vortex racquets however seem extremely hollow as well.
The stringing pattern on the 99s is more open than the Vortex tour 95. I would think that being a larger frame and with a more open pattern it would be much more powerful but less control?
Can't wait to give my review
The ES 100 is a great stick but EXTREMELY hollow. I switched first to the tour 100 and then to the 95. I love it .....the 99s will have a hard time on beating it .