HIGH MOI Driver actual result

[ronaldkuntoro]

If you are using the older 9.5 degree driver and your shot is ONLY sometimes straight,

Do you get straighter shots with High MOI driver (same loft) such as Nike Sumo and Callaway FTi? Do you actually gain any improvements?

[jldavis73]

I am by no means an expert, but I'll weigh in...
MOI is just a measurement of the club's resistance to twisting. If you've ever hit a driver out towards the toe, you can feel this twist. In theory, a club with a higher MOI will twist LESS on off-center contact and thus be more forgiving. Depending on how old the "older" 9.5* driver is, upgrading to a newer driver with a higher MOI should help with accuracy. Just make sure you get the right shaft. In my experience, this makes a bigger difference than the clubhead.

I have played the SQ5900 and the DYMO2 from Nike, and found both to be long and very forgiving. You can pick up the DYMO drivers new at a very attractive price now.

[saevel25]

That has nothing to do with the club actually twisting, ie shaft selection.

MOI is more about how the mass is distributed in the club, because the equations for MOI are based on geometry. Its a bit tricky, but if i remember right MOI is calculated as the mass times the distance from the centroid of the object squared. But getting away from this, Higher the MOI means more force is required to cause an object to rotate. So a higher MOI club head will require more force to cause any rotation in that club head, but this is indepenant of the golf shaft The reason is that all the force in the club head when swinging down towards the ball will cause a torque on the golf shaft. This will cause it to twist. Thats why alot of higher swing speeds need lower torque values on golf clubs.

So if your having issues with left or right, than look into the golf shaft. The MOI will only cause you to hit the ball farther on off hits because it resist rotational forces when that force of the golf ball is applied at the extremem edges of the golf club, ie toe shots or heel shots. It might help a bit in accuracy, but since majority of accuracy is derived by face angle, the shaft selection is more important.

My 975D driver is only about 5-10 yards shorter than my ping G10, and that driver is over 10 years old. The issue is on mishits, my G10 goes alot farther, but i was spraying my G10 because its golf shaft was a higher torque the golf shaft in my 975D.

[ronaldkuntoro]

How old? How about old drivers before 2005, before all this MOI mumbo jumbo and 460cc size drivers....

[kilbyman]

That has nothing to do with the club actually twisting, ie shaft selection.

High MOI drivers refers to rotational inertia.

I've tried the square drivers, and just can't get over the look. I actually hit the more traditional geometry better (because I don't feel like I'm hitting the ball with a George Foreman grill on a stick).

[saevel25]

Same here, i got to have a traditional looking golf club..

975D golf club is back from the late 90's