Rorys driver

[Arthur Wedge]

Interesting as well that Scottie, like Rory, is still playing the Qi10 as well. Not a great advert for the Qi35.

It happens a lot - the manufacturers bring out a significantly updated model - ie from SIM to QI which has a lot of changes and then the next year they have a few tweaks which for a pro some won’t bother with or need

It’s why many stuck with the M2 instead of going to the M3 or 4 when it came out or from the SIM to the SIM2

Or with Titleist when they change from TS1 etc to TSR

Some pros will have moved from the SIM2 straight to QI35 or from Stealth

It’s all about what sits well for them

 

[Neilds]

Interesting as well that Scottie, like Rory, is still playing the Qi10 as well. Not a great advert for the Qi35.

It they are testing a third of the field then that is 50-60 each tournament so they must expect a lot to fail. The force on the face from the pros is much more than we could ever hope to reach so not surprising over time they become more springy.

 

[SocketRocket]

I accept that these people who carry out the testing are experts and understand the matter. Without delving into the testing procedures and how the tolerances of conformation are set it seems a bit confusing to me how continued impact on the face produces a higher coefficient of restitution that transfers more energy from the clubface to the ball. I tend to remember the limit in a golf club is 83% but I may be wrong. I can understand that if the repeated collisions removed material from the clubface that resulted in thinning then the COR could theoretically increase due to the trampoline effect of the clubface. However, when subject to high levels of impact metals tend to work harden when the molecule chains are compressed thus creating a harder surface texture that becomes less flexible and more subject to cracking.

Does anyone understand the technicalities of how the clubface becomes non conforming?

EDIT:
Thinking on, some clubfaces now are manufactured from composite materials that won't work harden, they would however thin with wear.

 

[Neilds]

I accept that these people who carry out the testing are experts and understand the matter. Without delving into the testing procedures and how the tolerances of conformation are set it seems a bit confusing to me how continued impact on the face produces a higher coefficient of restitution that transfers more energy from the clubface to the ball. I tend to remember the limit in a golf club is 83% but I may be wrong. I can understand that if the repeated collisions removed material from the clubface that resulted in thinning then the COR could theoretically increase due to the trampoline effect of the clubface. However, when subject to high levels of impact metals tend to work harden when the molecule chains are compressed thus creating a harder surface texture that becomes less flexible and more subject to cracking.

Does anyone understand the technicalities of how the clubface becomes non conforming?

EDIT:
Thinking on, some clubface now are manufactured from composite materials that won't work harden, they would however thin with wear.

It's all to do with the conveyor belt acting on the wheels, lift over the wings and....

Ooops, sorry! Wrong physics thread

 

[Pin-seeker]

Interesting as well that Scottie, like Rory, is still playing the Qi10 as well. Not a great advert for the Qi35.

Seem to remember Westwood using the G10 for quite a few years.

 

[SocketRocket]

Seem to remember Westwood using the G10 for quite a few years.

He probably had a shed full of them.