Surefit adjustment- impact on Driver spin rate

Follow Thread

By Jamie L

  • 0 Likes
  • 3 Replies
  1. Jamie L

    Jamie L
    Winnipeg, MB

    I have a highly technical question for those who are up to the challenge. I have regular access to a Trackman and often use it for my own personal "fittings". Recently I have been playing around with my two driver heads- TSR2 and TSR3 both in 10* in the same shaft (HZRDUS Smoke Black 6.0). I was trying to see which of the heads was a better fit for me and tested each at 10* and at 9.25*. What I discovered was counterintuitive to what I previously believed.

    In 5 of the 6 sessions where I compared a driver head in 10* and delofted to 9.25* (by way of Surefit adjustment), I found there was an increase in spin of between 100-250rpm. According to Titleist Club Fitting manuals, reducing the loft of a club should reduce spin (300rpm for every 1*, I believe). I have found this to be the case when comparing T100 vs T100s irons or comparing a 9* head vs a 10* head but it doesn't seem to hold true when loft is manipulated by the Surefit sleeve, at least in my case.

    I am a 5 handicap and have a relatively consistent swing. When I compare the Dynamic Loft and Spin Loft numbers of the head in 10* vs 9.25*, I am more often than not seeing lower Dynamic and Spin Loft in the delofted head (9.25*) but it is resulting is higher spin for some reason.

    I am curious if these result are consistent with with Titleist or club fitters have found. The only explanation I can think of is that when adjust the Surefit sleeve to deloft a driver, it raise raises the Center of Gravity which increases spin.

  2. Brock L

    Brock L
    Fort Myers, FL

    To correct your last statement, lowering the CG generally increases spin.

    To get to the larger point. What are your sidespin and face angle numbers like? When change the loft of the driver, you are also changing face angle, simply by the way the adapter is designed. So, when you decrease the loft, the face will slightly open. That could potentially increase sidespin (specifically if you hit a cut) and increase overall spin. A better test would be to get 9 and 10 degree heads in the same model and test them against one another in same setting.

    This is why it's critical to get the correctly lofted head and get fit into the correct settings at the time of the fitting. Tinkering after the fact certainly changes the way a club performs, and may not end up in an optimal result.

  3. Jamie L

    Jamie L
    Winnipeg, MB

    I don't think lowering the CG increases spin. I have seen this info pretty consistently across the internet, which doesn't necessarily mean it is true.

    CG Forward (toward the face) will lower launch and spin, and generally make the club play a bit less forgiving.
    CG Back (away from the face) will increase launch and spin, and generally make the club play more forgiving.
    CG High (toward the top of the club head) will cause the ball to launch lower and spin more.
    CG Low (toward the bottom of the club head) will cause the ball to launch higher and spin less.

    It hit a draw. I hit it with less curve with the lower lofted head in most cases but there were 2 sessions were the lower loft had a more closed face and spin was still higher.
  4. Jamie L

    Jamie L
    Winnipeg, MB

    Also, I was properly fit at a Titleist National Fitting center. But my swing changes over time so I like to check my numbers on Trackman in the off season. I have two drivers which can be adjusted so I like to take the time to make sure I start the season with the driver set to provide me the best results at the start of the season.

    Appreciate your response!

Please login to post a comment.

Sign In

Haven't registered for Team Titleist yet?

Sign Up

Find a golf store near me