Diamana 50 stiff shaft for titeliest 913 d3

No way to tell that. You will need to go try them and get fitted.

Stiff shaft may be too firm for you...I would consider Regular, however I agree that getting fitted is the best solution for your situation...!

Really!! Fitting is the key, afterall if you are going to spend alot of money on your clubs you might as well as do it right!

www.titleist.com/golf-club-fitting

Good Luck!!

I'll echo the encouragement to schedule a fitting. Really no way to know what is best without making some swings, watching the ball fly, and checking stats. I came out of a fitting two years ago with a shaft/head combo I never would have imagined - but it works. Titleist is the best and the options are limitless.

Good luck to you!

You're going to need a Regular-flex shaft. Diamana 50 should work fine, depending on what kind of ball flight you are looking for. Your best option is to go for a fitting to make sure that you are getting the most bang for your buck. It's more than worth the time and cost when it comes to your driver.