Category Archives: Customization!

Customization. What it can do for you!

The Racquet Quest Podcast…update!

Thank you for listening to the Racquet Quest Podcast!

I am posting here to make an addition and a correction to a previous podcast, and this is quicker than waiting for a week or so for a new episode.

The “Stringing and Racquet Data” podcast was cut short, so I will finish it here. 

We were talking about the three (3) scale system we use to determine the torsional balance. The racquet is weighed at the midpoint of the head at the “top” and “down,” and the butt cap is resting on the third scale, and that is called the “butt.”

I don’t recall the podcast numbers right off, so I will use numbers from another racquet to explain. The racquet is a Wilson Ultra 100. The “top” weight is 95.3 grams, the “down” weight is 96.0 grams, and the “butt” is 119.9 grams for a total of 311.2 grams (10.97 oz.). So you can see the difference between the “top” and “down” number is only .7 grams, which is about a quarter of the weight of a vibration damper!

However, if this number was over 5 grams, we may want to “match” the numbers a little more closely! But, what if we wanted to increase the “top” weight by a lot to have the head heavier on one side than the other side? Why? Maybe a “training” aid to remind the player to keep the head lower, for example. Our experience shows that a difference between the “top” and “down” of 6 grams is noticeable.

 

On the Yonex VCore Pro 97 – Racquet Review, I noticed after the fact that I had indicated the Ereca System calculated the balance (CG) to within one-tenth of a centimeter! That would be pretty good, but in fact, the Ereca System calculates to within a tenth of a millimeter! Very precise! As of now, the Ereca System does not calculate swing weight as I tried to correct on the podcast but wanted to confirm that point.

Thank you for visiting the Racquet Quest website and listening to the Racquet Quest Podcast! Please let me know if you have any questions and suggestions for exciting topics!

 

 

How to Demo a Racquet

We have what seems to be a zillion demo racquets, and there is a player for each of them, I suppose.

One of the biggest complaints against “demoing” is precisely that…too many to choose from!

This is what we recommend;

  • Start the convesation with yourself before you need to make a decision.  Allow a month before the “season” starts if you can,and start the conversation with us early on.
  • What do you want that your current racquet is not providing.
  • What is your budget.  If you are a junior what is your “sponsors” budget.
    • With these three questions you are well on the way to a painless “demoing” expreience!

Here is what we would like to have to speed up the process:

  • Bring your current racquet in “play ready condition” with you to the primary discussion.
  • Tell us what has changed physically since you selected the current racquet.
    • Injuries, including tennis elbow, shoulder and wrist issues, or a long layoff, etc.
  • What do you want the new racquet to do that the current racquet is not?
    • Power, or “POP”, Control, Comfort, Grip Size, String Issues, etc.
  • Do you have a brand preference?
  • If we can make your current racquet better will you not demo other racquets?
    • It is possible that the current racquet can be better than it is so demo it as well after some customization.
    • Tell us if this is of interest or “I want a new racquet…period!

With this information we can make the demoing process much more fun,consise, and ultimatley rewarding, and in a much shorter time period.

Our demo process is free however we believe the racquet should be “setup” just as it will be used which may require stringing and a litttle customization and there will be a charge for that if you agree.

Our huge database of racquet specifications allow a quick look at the characteristics you prefer.

We think you wil be surprised at how much fun the demo process can be!

 

 

 

Head Graphene 360 + Gravity S

Here is where it gets interesting!  This racquet, the Gravity S, is a realtivley thin beam 104 square inch racquet!

It has been a while since Head has presented this head size in a player oriented racquet!  This 296 gram (10.44 ounce) racquet fills a serious need, in my opinion, for a “players” 104!  The 24mm beam allows the stiffness to reflect the new “Spiral Tech” fiber placement.

Model Comparison

I believe this racquet will appeal to serious adults seeking a comfortable racquet  (RDC 56 strung) that can elevate their game.

This racquet has plenty of “cutomization” potential which makes it great choice for quickly advancing players.

Stop by and feel this combination for yourself, and take the demo for a real test on the court!

 

 

ManufacturerHead
Racquet ModelHead Graphene 360 + Gravity S
Reference Tension55 lbs - 24.9 kg
String
Head Velocity MLT Black
Machine UsedTrue Tension Professional
Static
ASPS, RDC56
ASPS, FlexFour64.0
Racquet Flex, RDC55 - After stringing
Racquet Flex, FlexFour45
Racquet - In Plane Stiffness304.6 lbs/Inch
Weight, Grams296.0
Weight, Ounces10.44

Balance, mm329
Balance, Inch12.95
Length, Cm68.6
Length, Inch27.008
Head Width10.15
Head Length13.19
Head Area, cm2678.4
Head Area, Sq. Inch105.2
Number of Main Strings16
Number of Cross Strings20
Ratio Cross/Mains.616
Main String Grid7.25
Cross String Grid9.87
Density (% of head filled with string).680
Average Cross String Space.495
Average Main String Space.453
Dynamic
Dynamic Tension, Kp, ERT37
Dynamic Tension, Lbs/in206.9
First Moment, Nm.752
Polar Moment306
Torsional Stability14
Swing Weight, Kg/cm2292
Swing Weight, Ounces10.30
Swing Weight Calculated320.4
Power, RDC35
Control, RDC68
Manueverability, RDC92
Power, Calculated 1705.7
Head Points4.41
Head Weight, %48.0%
Center of Percussion20.9
Dwell Time, ms8.50
Efective Stiffness - lbs27.7
K, Lb/In179.4
Recoil Weight138.9
Twist Weight227.0
End Weight 117.8
Tip Weight 180.8
9 O'Clock91.3
3 O'Clock91.2
Butt Cap114.8

 

Play Like a Girl!

Yes, I mean it!

Keep reading to see why I suggest you “play like a girl.”

About a year ago, a little girl, Meera, about 12 years old, came into the World Headquarters to demo a few racquets.  She was committed to getting better and wanted a racquet that would help her.

After a few demos, she selected the Head Graphene Touch Radical Pro.  During the discussion of how we were going to set up these new racquets, I mentioned the Head Pro Cap System that is compatible with this model.

If you are not familiar with the “cap” system, it is the plastic parts that fit over the head of the racquet to protect the string.  All racquets have a grommet set, but the “cap” system encloses the string as it is installed therefore is more substantial than the standard grommet set.  The racquet on the left has the “cap” system.

Head Pro Cap System

She purchased two (2) Head Graphene Touch Radical Pro, one with and one without the cap system.

So, other than doing a great job of protecting string it also provides additional inertia, or momentum, that blasts the racquet through the incoming tennis ball!

This momentum creates stability, and a stable racquet will be more powerful and controllable!

But wait, what about all that additional weight?  That is the question we hear anytime we suggest adding weight to a racquet.

Weight is your friend!  Every player is different so matching the racquet to the physical capabilities is critical!

It was so much of a friend to Meera that she quickly came in to have the second Head Graphene Touch Radical Pro fitted with the “cap” system and both racquets fitted with a Head Leather grip!  The leather grip adds about 10 grams to the rear end of the racquet.

So, what are the specifications of this racquet that is being used successfully by a 12-year-old girl?

Take a look at these then tell me you can’t use a “heavier” racquet:

Weight:                               360 grams   (12.7 ounces)

SwingWeight:                    344 Kg/cm² (12.1 ounces)

Points Head Light:            8.03…yes, still very much headlight!

Torsional Stability:            22…very good!

Power:                                2216.6

Recoil Weight:                   176.9

Twist Weight:                    246.9

*Ereca End Weight:          153.0

*Ereca Tip Weight:           207.0

*Ereca is a French company that designs and manufactures racquet diagnostic equipment.

Do yourself a favor and Play Lkie a Girl!

There is more to this story so keep checking back, and, if you have questions please click on “Ask John” above or respond to this post and I will try to answer them.

String Bed Stiffness – A Short Video

It is raining today and it felt like a good time to talk about “string bed stiffness”…so let’s go!

This quick video will make a plea to you tennis players to demand more from your racquet technician so you are getting the most from your equipment.

Thank you for watching!

%d bloggers like this: