https://www.titleist.com/teamtitleist/team-titleist/f/club-fitting/16908/what-shaft-flex-for-my-new-910h Hi all I using a Kaili stiff in my new D3. The swing speed with the driver is about 94 mph. Now i would like to buy a 910H with the Kaili too. The swing speed with the hybrid is about 87 mph. Should i better chosse regular or stiff one? en-USTelligent Community 10https://www.titleist.com/teamtitleist/thread/75766?ContentTypeID=1Fri, 11 May 2012 13:27:17 GMT9ab519fc-5311-4952-85cd-0a0ceffb73fb:6f591f16-ade7-49a1-9227-b488ab5b000eSteven B<p>Hi. I have a 910H with a Kali stiff shaft with a swing speed around 88mph and like the performance. Before going out and spending the money, I&#39;d suggest testing it - looking at the numbers and ball flight. Good luck!</p><div style="clear:both;"></div>