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Modified Bore through callaway X-Tour and Proto 660 Titleist


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We are seeing more an more bore through clubs in recent and Toshi at Anserfreak has sniffed out some great information this time for us Titleist and Callaway lovers. Check it out:

It is supposed to raise the Center of gravity as well as make the head face balanced by adding weight to the neck area.

tb3.jpgtb2.jpgtb1.jpg

Same thing done here to a Vokey wedge:

tb6.jpgtb7.jpg

tb8.jpgtb4.jpg

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To bore a hosel w/1/4" drill bit to make them like the 735 or the X tour are going to take off quite a bit of weight. AT least 3 swing weight and it could be more on a tall hosel design ( such as Vokey wedges ).

Where are we gonna replace those lost weight? On the tip of the shaft? That will brought the same weight by the heel and higher CG by the hosel.

The 735 , X tour and the old wilson fluid feel are basically design w/ that hole and grind them properly to get the proper weight from the drawing spec, so they don't have the above problems. As far as I know, they did this design is for feel purposes.

To remove the weight on one spot by 10 grams will move the sweet spot on the other direction by aproximately 1/8". I'm not sure if we have that many of tour players can really hit at that level of precision, especially on the longer clubs.

IMO, it's more of the mental aspect of the game only here, technically is not quite applicable. Because for most weekend golfer, bounce angle has more effect on the ball trajectory due to ability of hitting it precisely is rare. I can't even grip it precisely within 1/8". :smile2:

BTW, Remember how the way people drilled a couple holes on the muscle of the wedges. IMO that is the best way to raise the CG without moving the sweet spot and replace some of the weight lost in the shaft tip also or lead tape on the higher spot.

Just my 2 cents!

Joe :cool:

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To bore a hosel w/1/4" drill bit to make them like the 735 or the X tour are going to take off quite a bit of weight. AT least 3 swing weight and it could be more on a tall hosel design ( such as Vokey wedges ).

Where are we gonna replace those lost weight? On the tip of the shaft? That will brought the same weight by the heel and higher CG by the hosel.

The 735 , X tour and the old wilson fluid feel are basically design w/ that hole and grind them properly to get the proper weight from the drawing spec, so they don't have the above problems. As far as I know, they did this design is for feel purposes.

To remove the weight on one spot by 10 grams will move the sweet spot on the other direction by approximately 1/8". I'm not sure if we have that many of tour players can really hit at that level of precision, especially on the longer clubs.

IMO, it's more of the mental aspect of the game only here, technically is not quite applicable. Because for most weekend golfer, bounce angle has more effect on the ball trajectory due to ability of hitting it precisely is rare. I can't even grip it precisely within 1/8". :smile2:

BTW, Remember how the way people drilled a couple holes on the muscle of the wedges. IMO that is the best way to raise the CG without moving the sweet spot and replace some of the weight lost in the shaft tip also or lead tape on the higher spot.

Just my 2 cents!

Joe :cool:

Very insightful J.K! I had no clue the sweet spot could be moved around in such a predictable manner. :smile1:

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