Many pro shops with the Surefit system will have the Kai'li in a regular flex as a shaft option and it can be interchanged with the 910 D3 head so that you can try it.  Give us a call at Team Titleist if your local pro shop does not have it and we…

Hi Team, does it mean I can change the swing (eg. from D4->D2) if I have the screw for 909D2?

all is depend on your handicap to pick up driver that suit for you.

910D2 more forgiving, have a higher trajectory than 910D3 and best for 25-15 handicap.

910D3 have flatter trajectory, less spin and more workable than 910D2 and best for 15-0 handicap…

Please take your club to your local Titleist pro shop and have them call the Warranty department.  They can set up the Warranty RA and have it fixed for you.  It should take about 3-4 days or less once we receive it.