We have very similar swings. My swing speed is about 120 - 123 consistantly. Have always hit a high ball flight. If you normally hit a high ball and go with the project-x's, expect to hit them a little higher. I use the 6.0, you might need the 6.5 or 7.0.
The only problem I have at times is working the ball. I tend to hit the ball very straight with these shafts. I have had these shafts for only about 3 months, so I'm hoping with a few more months under my belt I'll be back to my normal ways. I bet if I actually went to the range my shaping would be a lot better. Good luck.