I have a year old Cobra F-Speed Driver. While I was at the range I had my bag to close to where I was hitting the driver and on the downswing the sole of the club rammed into the irons. It now has a nice large dent in the sole. The dent is located in the bottom right of the club, is about the size of a half-dollar, and is a over a quarter-inch deep.
I called Cobra and they said it would probably effect the ball flight (I have noticed a difference, but perhaps that's just a lousy swing; I hit the ball much shorter and much higher). To replace the head would cost approximately $200.
Do any of you know if a dent like this would cause a change in driver characteristics?
Thank you!
ps: When you swing your driver, make sure your bag is well behind you. Duh...
A main reason driver are made to 460cc these days is to be able to push as much mass as possible to the back and to the sides. This is where denting a side of the club is going to affect its play. That mass back and to the sides are what increases its forgiveness -- increasing its sweet spot. The measure of this is moment of inertia, often abbreviated MOI. So, not only have you reduced the MOI, but the mass is now definitely distributed non-optimally. How to distribute that mass is one of the major engineering challenges when designing the clubhead. You can't just redistribute it on your own and expect it to be the same.
Now, probably the real question is, is it playable? I'd actually say yes. The problem is that the driver swing you have now may not be adequate for hitting this newly dented driver. The sweet spot may actually no longer be in the middle for instance. The sweet spot is probably at least somewhat smaller. The club may now have a draw or fade tendency, or high or low trajectory. The problem with all this is if you go back to a properly designed driver, your corrected swing may not work. So you have to relearn it all again. I think you have to take this as a life-lesson and move on. Maybe you can find a new head on ebay or something, rather than having Cobra fix it for you.
I am not sure if it will effect the ballflight but i am sure that it is in your head now. If you have any doubt about the club it will effect you mentally. Run..don't walk...to the nearest golf store and buy a new driver. good luck.
A similar thing happend to me a couple years back. I was in the middle a backswing when I rammed the back of my driver hard into my bag. Apparently, it hit something hard. It left a dent about the size of a quarter and about 1/4 inch deep, like yours. It hasn't really affected my game that much, and I find myself forgetting about it.
A similar thing happend to me a couple years back. I was in the middle a backswing when I rammed the back of my driver hard into my bag. Apparently, it hit something hard. It left a dent about the size of a quarter and about 1/4 inch deep, like yours. It hasn't really affected my game that much, and I find myself forgetting about it.
I noticed an immediate difference. The repair guy at Cobra said the MOI was affected and the clubhead would need to be replaced.
I received a gift certificate early for my b-day to Edwin Watts, I also had some clubs to trade in so I was fitted for a new driver today at low dollars. The difference on the launch monitor (vector machine, whatever you call it), was night and day compared with the Cobra (launch angle, spin rate, shot dispersion, etc). Problem is I won't be able to blame the new club for bad drives anymore
I spent almost 90 minutes with the fitter going through a lot of permutations. For example, my spin rate went from over 4000 to just under 3000. I should receive the new driver in a couple of weeks.
It's a 10º Callaway FT-5 draw with the YS6+ shaft.
April 10th, 2007, 07:04 PM
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