Oversized drilled string holes, engineering flaw?

I spotted recent Dunlop sticks (Precision 98, Force 98, NT R4.0) have oversized drilled string holes giving the strings more space for movement (on ball impact). This is on the inside of the racket, on the outside the holes are of normal size. As far as I can tell the Völkl V-SENSE 10 295 has a grommet technology which allows for additional string movement as well. A dubious engineering decision in my opinion. In the case of Dunlop you just virtually have a bigger head size with the benefits and loss of a bigger head-size but on top of that you have the loss of a higher change of frame hits which come with smaller head-sizes. So it doesn't make much sense to me to put this grommet design in rackets.

I do everything to avoid playing with a Head, Wilson or Babolat but if brands like Völkl, Dunlop, Prince do these strange things (to grommets) then I am not inclined to buy them. Does the Dunlop M3.0 has oversized drilled string holes?

 
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SpinToWin

Talk Tennis Guru
Many brands do this nowadays precisely in order to increase string movement. Better to think of it as a design feature you don't like rather than a engineering flaw
 
Many brands do this nowadays precisely in order to increase string movement. Better to think of it as a design feature you don't like rather than a engineering flaw
Yes I see, but in my opinion it is just a wrong decision, just buy a stick with a larger head-size if you want more string movement, not?
 

Shroud

G.O.A.T.
I spotted recent Dunlop sticks (Precision 98, Force 98, NT R4.0) have oversized drilled string holes giving the strings more space for movement (on ball impact). This is on the inside of the racket, on the outside the holes are of normal size. As far as I can tell the Völkl V-SENSE 10 295 has a grommet technology which allows for additional string movement as well. A dubious engineering decision in my opinion. In the case of Dunlop you just virtually have a bigger head size with the benefits and loss of a bigger head-size but on top of that you have the loss of a higher change of frame hits which come with smaller head-sizes. So it doesn't make much sense to me to put this grommet design in rackets.

I do everything to avoid playing with a Head, Wilson or Babolat but if brands like Völkl, Dunlop, Prince do these strange things (to grommets) then I am not inclined to buy them. Does the Dunlop M3.0 has oversized drilled string holes?

I bought the prince lightening and wilson Juice and damn if they didnt have that same stupid "technology". Who wants a stringbed that gives on contact. I certainly dont. Design flaw fo sho!!
 

esgee48

G.O.A.T.
That's because @Shroud can't go above 86# on his Wise. There is at least several ways to reduce this string movement though they may be labor intensive. Easiest way would be to remove the offending grommets and replace them with FITEX tubes that would be snug on the inside of the frame. May require enlarging the hole on the outside of the frame. Not really worth all this work as it is easier to sell and buy. 3 cents.
 

Shroud

G.O.A.T.
That's because @Shroud can't go above 86# on his Wise. There is at least several ways to reduce this string movement though they may be labor intensive. Easiest way would be to remove the offending grommets and replace them with FITEX tubes that would be snug on the inside of the frame. May require enlarging the hole on the outside of the frame. Not really worth all this work as it is easier to sell and buy. 3 cents.
I thought about that on the lightnings but the holes were not round but oval so there would always be movement. The frame holes were bigger than any fittex grommet. It was a good thought but i couldnt see how to fix them so i ditched the lightnings.
 

anhboa2

Rookie
Bigger holes might be for those 15G strings esp strings like the Natual gut Wholesale. I dont think they make any impact on ball feel or string bed, have tried new Blade 98 grommet (bigger holes) on the KBlade 98 and it feels just the same.
 

Shroud

G.O.A.T.
Bigger holes might be for those 15G strings esp strings like the Natual gut Wholesale. I dont think they make any impact on ball feel or string bed, have tried new Blade 98 grommet (bigger holes) on the KBlade 98 and it feels just the same.
There are bigger holes and holes that scream string bed mush like the green holes:

 
Almost every racket has this nowadays. It is so wrong. Yes it gives you a bigger sweet spot, but if I want a bigger sweet spot then I could have just bought a stick with a bigger head-size. This makes no sense.
 

Irvin

Talk Tennis Guru
Yes I see, but in my opinion it is just a wrong decision, just buy a stick with a larger head-size if you want more string movement, not?
On the other hand if it's a racket that plays like a smaller head size you want buy a smaller head. Larger grommets reduce shear by allowing for more movement at the point where the string enters/exits the grommet. Those larger grommets also give you effectively a longer string giving you more power. Same theory as the Prince O Ports without all the problems with stringing ported rackets.

It all boils down to finding a racket (and technology) you like. Once you find a racket you like buy it. Don't expect the manufacturers to design a racket just for you unless of course you're Roger Federer. I'm amazed at all the people that have to play with Roger Federer's racket whether it fits their game or not.
 
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Come on, on this board we discuss every tenth of an ounce, and now manufacturers magically add 3 sq in to their sticks no one is talking about it.

Yonex Ezone DR also seem to have this.

 
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Ronaldo

Bionic Poster
On the other hand if it's a racket that plays like a smaller head size you want buy a smaller head. Larger grommets reduce shear by allowing for more movement at the point where the string enters/exits the grommet. Those larger grommets also give you effectively a longer string giving you more power. Same theory as the Prince O Ports without all the problems with stringing ported rackets.

It all boils down to finding a racket (and technology) you like. Once you find a racket you like buy it. Don't expect the manufacturers to design a racket just for you unless of course you're Roger Federer. I'm amazed at all the people that have to play with Roger Federer's racket whether it fits their game or not.
Serena's Powerholes?????????????
 
This subject deserves a bump. It still annoys me, especially because the majority of the sticks released nowadays have it, Babolat seems to be the exception.
 
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