Finding the right shaft flex is an important part of the fitting process
Golf.com
Shaft flex is one of the most confusing areas of golf equipment because there are so many factors that go into choosing the right one — including swing speed.
Although driver speed is one of the biggest determining factors, you should always keep in mind that your swing speed for your irons might not extrapolate perfectly to your driver (and vice versa), so while a specific flex might be perfect in some clubs, that might not be the case in others.
Also, considering the unique launch characteristics that a driver should have to maximize performance compared to what an iron needs to provide maximum control, keeping an open mind will lead to better results on the course.
Ryan Barath is GOLF Magazine and GOLF.com’s senior editor for equipment. He has an extensive club-fitting and -building background with more than 20 years of experience working with golfers of all skill levels, including PGA Tour players. Before joining the staff, he was the lead content strategist for Tour Experience Golf, in Toronto, Canada.