910d2 help

I've had a 910d2 for about a year now.  I've been playing the Project X 7c3 shaft since I got it.  I've been battling a ballooing ball flight since that has a pretty good fade on it.  Until I got the d2, I played a Nickent 4dx se driver.  I've tried adjusting the settings and can't seem to get the flight down.  I've only had my SS tested twice and they were both in the 110-115 neighborhood.  I talked to a friend down in Orlando and he said I probably needed a X-Flex shaft with a stiff tip to help the ball come down.  

Any ideas to help me out?