Category Archives: Patterns

Wilson Pro Staff Six One 100, v14

As you know the Wilson Pro Staff Six One franchise has been around about as long as wooden racquets have been gone!  A long time!

Many racquets have come and gone. ¬†Some should not have “come” and some should not have “gone”, in my opinion.

This racquet, to me, is the epitome of the Pro Staff Six One series for a few reasons.

  • The 100-square-inch head size is ideal.
  • The thin 22mm beam is perfect.
  • The Shiny Rust finish is the best of all Pro Staffs!
  • The geometry and proportions are perfect.
  • The stiffness (flex) is satisfyingly low.

Wilson shiny Rust Pro Staff Six One 100

The specifications will tell us more about the racquet, but here are some things that don’t appear on the “spec” sheet.

  • ¬†This is a foam-filled racquet.
  • The FORTY-FIVE layup is used in this racquet.
  • The grommet barrels are large enough to allow string movement.
  • The bumper guard “string valley” is very deep.

Let’s take a look at the specifications.

ManufacturerWilson
Racquet ModelWilson Pro Staff Six One
Reference Tension55

String
PEEK 7710
Machine UsedTrue Tension Professional
Static
String Bed Stiffness - RDC52.0 Units
String Bed Stiffness -FlexFour58.6 Pounds
String Bed Stiffness - SBS50.6 pounds
String Bed Stiffness - ERT35 Kg/Cm
Racquet Flex, RDC63 - After stringing
Racquet Flex, FlexFour50.0
Racquet - In Plane Stiffness487.2 Lbs/Inch
Weight, Grams332
Weight, Ounces11.71
Balance, mm330
Balance, Inch12.99
Length, Cm68.6
Length, Inch27.03
Head Width9.87
Head Length12.82
Head Area, cm2641.2
Head Area, Sq. Inch99.4
Beam Height @ Grip, mm22.0
Beam Height @ Mid, mm22.0
Beam Height @ Tip22.0
Beam Width @ Grip, mm12.85
Beam Width @ Throat, mm12.65
Beam Width @ Mid, mm12.38 (PWS)
Beam Width @ Tip, mm12.27 (including bumper)
Number of Main Strings16
Number of Cross Strings19
Ratio Cross/Mains.648
Main String Grid7.20
Cross String Grid10.06
Density (% of head filled with string)72.9%
Average Cross String Space.529
Average Main String Space.450
Dynamic
Dynamic Tension, Kp, ERT MasterTensometer35
Dynamic Tension, Lbs/in195.76
First Moment, Nm.847
Polar Moment343.0
Torsional Stability16
Swing Weight, Kg/cm2327
Swing Weight, Ounces11.53
Swing Weight Calculated361.5 (full-length)
Power, RDC51.0
Control, RDC50.0
Manueverability, RDC69.0
Power, Calculated 2067.9
Head Points4.00
Head Weight, %48.1 %
Center of Percussion20.8
Dwell Time, ms8.82
Efective Stiffness - lbs28.5
K, Lb/In166.67
Recoil Weight153.88
Twist Weight241.58
End Weight 131.0
Tip Weight 201.5
9 O'Clock100.9
3 O'Clock102.3
Butt Cap128.6
COF, Main.340
COF, Cross.366
We invite you to try this racquet!

 

 

Head Gravity Pro 2023

Head Gravity Pro 2023

Here comes the new Head Gravity Pro 2023, which brings some good stuff! Like a 100 square inch head with a string pattern of 18×20!

You will see more goodies when you look at the specifications!

This new Gravity Pro has a different “vibe” than last year’s model. ¬†Maybe it is the muted graphics!

The specifications will tell this is true “players” racquet!

Hint:  Swing Weight=338

You need to try this demo soon!  Trust me!

ManufacturerHead
Racquet ModelHead Gravity Pro 2023
Reference Tension53
String
MonoGut ZX Pro (PEEK)
Machine UsedTrue Tension Professional
Static
String Bed Stiffness - RDC58.0 Units
String Bed Stiffness -FlexFour66.9 pounds
String Bed Stiffness - SBS52.4 pounds
String Bed Stiffness - ERT37 Kg/Cm
Racquet Flex, RDC64 - After stringing
Racquet Flex, FlexFour42.5
Racquet - In Plane Stiffness467.9 lbs/Inch
Weight, Grams344
Weight, Ounces12.13
Balance, mm327
Balance, Inch12.87
Length, Cm68.6
Length, Inch27.03
Head Width9.849
Head Length12.85
Head Area, cm2643.5
Head Area, Sq. Inch99.7
Beam Height @ Grip, mm21.2
Beam Height @ Mid, mm20.5
Beam Height @ Tip20.5
Beam Width @ Grip, mm11.3
Beam Width @ Throat, mm11.3
Beam Width @ Mid, mm11.0
Beam Width @ Tip, mm12.5 (includes bumper)
Number of Main Strings18
Number of Cross Strings20
Ratio Cross/Mains.693
Main String Grid7.87
Cross String Grid9.75
Density (% of head filled with string)71.4%
Average Cross String Space.488
Average Main String Space.406
Dynamic
Dynamic Tension, Kp, ERT37
Dynamic Tension, Lbs/in206.94
First Moment, Nm.867
Polar Moment353
Torsional Stability15
Swing Weight, Kg/cm2338
Swing Weight, Ounces11.92
Swing Weight Calculated367.8
Power, RDC48
Control, RDC52
Manueverability, RDC61
Power, Calculated 2179.2
Head Points5.04
Head Weight, %47.7%
Center of Percussion21.0
Dwell Time, ms8.35
Efective Stiffness - lbs30.4
K, Lb/In185.90
Recoil Weight163.23
Twist Weight251.11
End Weight 138.2
Tip Weight 206.0
9 O'Clock104.5
3 O'Clock104.1
Butt Cap133.9
COF, Main.370
COF, Cross.309

 

Head Gravity Team 2023

The new Head Gravity Team 2023 is last year’s Gravity S, a stellar racquet for many players! ¬†The 104 square-inch head fits a particular niche, and the modest stiffness will appeal to many!

The head shape on this 104-inch head is more round and nicely proportioned, which adds to the approachability of this model.

As usual, the numbers will tell the story, so look at the specifications!

This is a great option if you want something over 100 square inch head!

ManufacturerHead
Racquet ModelHead Gravity Team 2023
Reference Tension53
String
MonoGut ZX Pro (PEEK)
Machine UsedTrue Tension Professional
Static
String Bed Stiffness - RDC50.0 Units
String Bed Stiffness -FlexFour58.6 pounds
String Bed Stiffness - SBS46.0 pounds
String Bed Stiffness - ERT34 Kg/Cg
Racquet Flex, RDC60 - After stringing
Racquet Flex, FlexFour46.0
Racquet - In Plane Stiffness394.2 lbs/Inch
Weight, Grams310
Weight, Ounces10.93
Balance, mm335
Balance, Inch13.23
Length, Cm68.6
Length, Inch27.03
Head Width10.125
Head Length13.14
Head Area, cm2674.1
Head Area, Sq. Inch104.5
Beam Height @ Grip, mm22.5
Beam Height @ Mid, mm24.2
Beam Height @ Tip24.2
Beam Width @ Grip, mm10.8
Beam Width @ Throat, mm10.5
Beam Width @ Mid, mm11.0
Beam Width @ Tip, mm12.2 (includes bumper)
Number of Main Strings16
Number of Cross Strings20
Ratio Cross/Mains.616
Main String Grid7.87
Cross String Grid10.50
Density (% of head filled with string)75.1%
Average Cross String Space.506
Average Main String Space.484
Dynamic
Dynamic Tension, Kp, ERT34
Dynamic Tension, Lbs/in190.16
First Moment, Nm.809
Polar Moment324
Torsional Stability16
Swing Weight, Kg/cm2308
Swing Weight, Ounces10.86
Swing Weight Calculated350.0
Power, RDC47
Control, RDC55
Manueverability, RDC81
Power, Calculated 1950.2
Head Points2.20
Head Weight, %49.0%
Center of Percussion20.5
Dwell Time, ms9.00
Efective Stiffness - lbs27.3
K, Lb/In160.26
Recoil Weight137.68
Twist Weight236.44
End Weight 116.9
Tip Weight 191.3
9 O'Clock96.6
3 O'Clock97.1
Butt Cap114.5
COF, Main.412
COF, Cross.309

Head Gravity MP 2023

Close behind the new Head Radical comes the new Head Gravity 2023! Not one but three (3!). The Gravity Pro, the Gravity MP, and the Gravity Team!

This Gravity MP 2023 demo racquet is ready to hit today!  If you have not hit with a Gravity you will be intrigued by the weight distribution.  

We are starting with the Gravity MP 2023.

Head Gravity has always used a multi-color graphic package with one color on one side and another color on the other side.  This was clever, and many players liked the look.

The new models use a “color-shifting” graphic that you can see here. ¬†The colors are subtly different depending on how you look at the racquet.

And the graphic starts at the butt end on one side and starts at the tip on the other!  So it has a lot going on. 

The racquet is a 100-square-inch head with a fairly thin beam and deep throat shaft.

The string pattern is 16×20, which fills up the hitting area and produces a fairly dense pattern in the center of the racquet. ¬†This may contribute to a slightly longer string life.

Let’s take a look at the specifications

You may notice the stiffness of this racquet should be perfect for the control component of your game and be very arm friendly (see effective stiffness).

Head Gravity MP 2023

 

ManufacturerHead
Racquet ModelHead Gravity MP 2023
Reference Tension53
String
MonoGut ZX Pro (PEEK)
Machine UsedTrue Tension Professional
Static
String Bed Stiffness - RDC50.0 Units
String Bed Stiffness -FlexFour60.8 pounds
String Bed Stiffness - SBS49.6 pounds
String Bed Stiffness - ERT35 Kg/Cm
Racquet Flex, RDC57 - After stringing
Racquet Flex, FlexFour39.0
Racquet - In Plane Stiffness397.4 lbs/Inch
Weight, Grams318
Weight, Ounces11.22
Balance, mm335
Balance, Inch13.19
Length, Cm68.6
Length, Inch27.03
Head Width9.91
Head Length12.86
Head Area, cm2645.9
Head Area, Sq. Inch100.1
Beam Height @ Grip, mm21.2
Beam Height @ Mid, mm22.5
Beam Height @ Tip22.5
Beam Width @ Grip, mm10.6
Beam Width @ Throat, mm10.6
Beam Width @ Mid, mm11.0
Beam Width @ Tip, mm12.3
Number of Main Strings16
Number of Cross Strings20
Ratio Cross/Mains.617
Main String Grid7.70
Cross String Grid10.25
Density (% of head filled with string)70.0%
Average Cross String Space.515
Average Main String Space.425
Dynamic
Dynamic Tension, Kp, ERT35
Dynamic Tension, Lbs/in195.76
First Moment, Nm.827
Polar Moment338
Torsional Stability14
Swing Weight, Kg/cm2324
Swing Weight, Ounces11.43
Swing Weight Calculated356.9
Power, RDC46
Control, RDC56
Manueverability, RDC71
Power, Calculated 1867.4
Head Points2.68
Head Weight, %48.8%
Center of Percussion21.0
Dwell Time, ms9.00
Efective Stiffness - lbs26.6
K, Lb/In160.26
Recoil Weight150.77
Twist Weight233.27
End Weight 122.3
Tip Weight 197.8
9 O'Clock98.9
3 O'Clock99.7
Butt Cap119.8
COF, Main.426
COF, Cross.378

String Savers

String savers are on my mind today for several reasons so I thought I would post something about them that may be of interest. ¬†Let’s see!

String Savers are tiny little pieces of material that are “grooved” to cradle the string and provide a tiny barrier between rubbing strings, therefore creating a longer, happier life!

String Savers are normally used when stringing your tennis racquet with natural gut string to help the $75.00 job last longer.

But what else do string savers do?

Well, in the case we see here it increases the swing weight from 332 to 341! So 286 of these tiny things have an impact on swing weight! 

Probably the typical reaction would be an increase in string bed stiffness but that is not the case, plus the string bed stiffness is ever-changing anyway.