Category Archives: Demo
Wilson Shift 99/315 Pro
The Wilson Shift has introduced a new movement in racquet design, and the Shift 99/315 Pro rounds out the two (2) racquet series for now!
If you read the review of the 99/300 Shift, you have a good idea about the concept: on the impact, the ball moves the head down, and before the ball can leave the strings, the head moves up!
It is like you are swinging from low to high! It sounds simple, but there is more to it than that.
| Manufacturer | Wilson |
|---|---|
| Racquet Model | Wilson Shift 99/315 Pro |
| Reference Tension | 50 |
| String | Babolat Xalt 130 |
| Machine Used | Babolat Racquet Station |
| String Bed Stiffness - RDC | 60.0 |
| String Bed Stiffness -FlexFour | 64.6 |
| String Bed Stiffness - SBS | 45.0 |
| String Bed Stiffness - ERT | 38 kg/cm |
| Racquet Flex, RDC | 70 After Stringing |
| Racquet Flex, FlexFour | 45.0 |
| Racquet - In Plane Stiffness | 383.6 Lbs/In |
| Weight, Grams | 338 |
| Weight, Ounces | 11.92 |
| Balance, mm | 321 |
| Balance, Inch | 12.64 |
| Length, Cm | 68.6 |
| Length, Inch | 27.03 |
| Head Width | 9.79 |
| Head Length | 12.74 |
| Head Area, cm2 | 632.1 |
| Head Area, Sq. Inch | 98.0 |
| Beam Height @ Grip, mm | 23.0 |
| Beam Height @ Mid, mm | 24.0 |
| Beam Height @ Tip | 24.0 |
| Beam Width @ Grip, mm | 12.75 |
| Beam Width @ Throat, mm | 12.8 |
| Beam Width @ Mid, mm | 11.1 |
| Beam Width @ Tip, mm | 13.0(including bumper) |
| Number of Main Strings | 18 |
| Number of Cross Strings | 20 |
| Ratio Cross/Mains | .692 |
| Main String Grid | 7.13 |
| Cross String Grid | 10.44 |
| Density (% of head filled with string) | 76.0 % |
| Average Cross String Space | .522 |
| Average Main String Space | .396 |
| Dynamic Tension, Kp, ERT MasterTensometer | 38 kg/cm |
| Dynamic Tension, Lbs/in | 212.54 |
| First Moment, Nm | .832 |
| Polar Moment | 341.0 |
| Torsional Stability | 17 |
| Swing Weight, Kg/cm2 | 324 |
| Swing Weight, Ounces | 11.43 |
| Swing Weight Calculated | 346.3 (full-length) |
| Power, RDC | 49.0 |
| Control, RDC | 51.0 |
| Manueverability, RDC | 74.0 |
| Power, Calculated | 2244.1 |
| Head Points | 6.93 |
| Head Weight, % | 46.8% |
| Center of Percussion | 21.0 |
| Dwell Time, ms | 5.94 |
| Dwell Time, Spin, ms | 8.21 |
| Efective Stiffness - lbs | 32.3 |
| K, Lb/In | 192.31 |
| Recoil Weight | 161.30 |
| Twist Weight | 242.30 |
| End Weight | 135.9 |
| Tip Weight | 193.8 |
| 9 O'Clock | 98.2 |
| 3 O'Clock | 99.0 |
| Butt Cap | 130.4 |
| COF, Main | .396 |
| COF, Cross | .319 |
So, here IS the difference!
This table will clarify the differences between the Pro Staff Six-One and Pro Staff X models. While numbers are important, it is equally important to actually hit with the racquet(s) setup as you will be using them.
Pro Staff Six-One versus Pro Staff X
Click here to see the Wilson Pro Staff X
Click here to see the Wilson Pro Staff Six-One data
So, what IS the difference?
Wilson has presented us with a couple of choices when it comes to choosing a 100-square-inch racquet!
Later we will have a comparison table showing the pertinent property data, but now we can see the graphics difference between the two racquets:
Pro Staff Six-One 100
ProStaff X v14 100
The Pro Staff Six-One 100 has a very shiny rust color. The Pro Staff X is the matt finish used on most of the v14 Pro Staff models.
In addition to the “shining,” the Six-One has the “normal” elliptical cross-section, while the “X” has a “box beam” geometry which is a little more narrow.
The string spacing on the “X” is slightly more open, which may contribute to the power calculation being a bit higher.
The flex of the “X” is a little greater in the shaft area.
That is enough talk!”
Let’s look at the numbers:
| Manufacturer | Wilson |
|---|---|
| Racquet Model | Wilson Pro Staff X 100, v14 |
| Reference Tension | 55 |
| String | PEEK 7710 |
| Machine Used | True Tension Professional |
| String Bed Stiffness - RDC | 50.0 Units |
| String Bed Stiffness -FlexFour | 61.0 Pounds |
| String Bed Stiffness - SBS | 47.0 pounds |
| String Bed Stiffness - ERT | 38 Kg/Cm |
| Racquet Flex, RDC | 64 - After Stringing |
| Racquet Flex, FlexFour | 47.0 |
| Racquet - In Plane Stiffness | 467.9 Lbs/Inch |
| Weight, Grams | 340 |
| Weight, Ounces | 11.99 |
| Balance, mm | 322 |
| Balance, Inch | 12.68 |
| Length, Cm | 68.6 |
| Length, Inch | 27.03 |
| Head Width | 9.73 |
| Head Length | 13.06 |
| Head Area, cm2 | 643.4 |
| Head Area, Sq. Inch | 99.7 |
| Beam Height @ Grip, mm | 22.3 |
| Beam Height @ Mid, mm | 22.0 |
| Beam Height @ Tip | 22.0 |
| Beam Width @ Grip, mm | 11.00 |
| Beam Width @ Throat, mm | 11.00 |
| Beam Width @ Mid, mm | 12.00(PWS) |
| Beam Width @ Tip, mm | 12.00(including bumper) |
| Number of Main Strings | 16 |
| Number of Cross Strings | 19 |
| Ratio Cross/Mains | .627 |
| Main String Grid | 7.50 |
| Cross String Grid | 10.81 |
| Density (% of head filled with string) | 81.2% |
| Average Cross String Space | .569 |
| Average Main String Space | .469 |
| Dynamic Tension, Kp, ERT MasterTensometer | 38 |
| Dynamic Tension, Lbs/in | 212.54 |
| First Moment, Nm | .841 |
| Polar Moment | 341.0 |
| Torsional Stability | 17 |
| Swing Weight, Kg/cm2 | 324 |
| Swing Weight, Ounces | 11.43 |
| Swing Weight Calculated | 352.2 (full-length) |
| Power, RDC | 53.0 |
| Control, RDC | 47.0 |
| Manueverability, RDC | 71.0 |
| Power, Calculated | 2088.8 |
| Head Points | 6.61 |
| Head Weight, % | 46.9% |
| Center of Percussion | 20.8 |
| Dwell Time, ms | 9.00 |
| Efective Stiffness - lbs | 28.1 |
| K, Lb/In | 160.26 |
| Recoil Weight | 158.85 |
| Twist Weight | 240.78 |
| End Weight | 141.3 |
| Tip Weight | 198.9 |
| 9 O'Clock | 102.5 |
| 3 O'Clock | 101.9 |
| Butt Cap | 135.6 |
| COF, Main | .529 |
| COF, Cross | .499 |
Click here to see the Comparison Table
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.
| Manufacturer | Wilson |
|---|---|
| Racquet Model | Wilson Pro Staff Six One |
| Reference Tension | 55 |
| String | PEEK 7710 |
| Machine Used | True Tension Professional |
| String Bed Stiffness - RDC | 52.0 Units |
| String Bed Stiffness -FlexFour | 58.6 Pounds |
| String Bed Stiffness - SBS | 50.6 pounds |
| String Bed Stiffness - ERT | 35 Kg/Cm |
| Racquet Flex, RDC | 63 - After stringing |
| Racquet Flex, FlexFour | 50.0 |
| Racquet - In Plane Stiffness | 487.2 Lbs/Inch |
| Weight, Grams | 332 |
| Weight, Ounces | 11.71 |
| Balance, mm | 330 |
| Balance, Inch | 12.99 |
| Length, Cm | 68.6 |
| Length, Inch | 27.03 |
| Head Width | 9.87 |
| Head Length | 12.82 |
| Head Area, cm2 | 641.2 |
| Head Area, Sq. Inch | 99.4 |
| Beam Height @ Grip, mm | 22.0 |
| Beam Height @ Mid, mm | 22.0 |
| Beam Height @ Tip | 22.0 |
| Beam Width @ Grip, mm | 12.85 |
| Beam Width @ Throat, mm | 12.65 |
| Beam Width @ Mid, mm | 12.38 (PWS) |
| Beam Width @ Tip, mm | 12.27 (including bumper) |
| Number of Main Strings | 16 |
| Number of Cross Strings | 19 |
| Ratio Cross/Mains | .648 |
| Main String Grid | 7.20 |
| Cross String Grid | 10.06 |
| Density (% of head filled with string) | 72.9% |
| Average Cross String Space | .529 |
| Average Main String Space | .450 |
| Dynamic Tension, Kp, ERT MasterTensometer | 35 |
| Dynamic Tension, Lbs/in | 195.76 |
| First Moment, Nm | .847 |
| Polar Moment | 343.0 |
| Torsional Stability | 16 |
| Swing Weight, Kg/cm2 | 327 |
| Swing Weight, Ounces | 11.53 |
| Swing Weight Calculated | 361.5 (full-length) |
| Power, RDC | 51.0 |
| Control, RDC | 50.0 |
| Manueverability, RDC | 69.0 |
| Power, Calculated | 2067.9 |
| Head Points | 4.00 |
| Head Weight, % | 48.1 % |
| Center of Percussion | 20.8 |
| Dwell Time, ms | 8.82 |
| Efective Stiffness - lbs | 28.5 |
| K, Lb/In | 166.67 |
| Recoil Weight | 153.88 |
| Twist Weight | 241.58 |
| End Weight | 131.0 |
| Tip Weight | 201.5 |
| 9 O'Clock | 100.9 |
| 3 O'Clock | 102.3 |
| Butt Cap | 128.6 |
| COF, Main | .340 |
| COF, Cross | .366 |
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