Category Archives: Pro Stock

A Golden (actually gloss black) Opportunity!

We have four (4) Head Auxetic Radical MP SMUs (351.1), but this is the only one in gloss black!  All of them can be gloss black, but this is the only one that is currently available.

The racquet is totally “raw,” no weight, no grip, no swing weight, and no length, yet!

Head 351.1


This racquet will be set up to your specifications.

Your racquet will come with a complete specification document.

You can choose either a leather or a synthetic base grip.

Your racquet will be strung with Ashaway MonoGut ZX Pro (17-gauge), either black or natural, to introduce you to the benefits of PEEK.

The cost of this opportunity is $525.00, including tax and shipping in the United States.

Please contact us if you have any questions about this or any of our other SMU racquets.

 

 

We refer to these racquets as Special Make Up (SMU). Others may call them Pro Stock. Either way is OK with us!

Pro Stock & Special Make Up (SMU) Racquets

Pro Stock & SMU racquets are a huge part of our business and Pro Stock and SMU’s continue to grow!

Soon, we are going to post the current inventory of Pro Stock and SMU racquets that are at the World Headquarters; however, in the meantime, please visit our YouTube channel to see and hear more about what we do.

Full Custom Head Gravity Tour 98!


We receive the racquets in the uncut, raw state, then make them yours.

The finished Pro Stock(s) are made to your specifications:

  • Length: Up to 28 inches
  • Weight
  • Inertia (swing weight)
  • Grip pallet: Head TK82 (flat) or TK82S (round)
  • Perfect Pallet:  Custom Printed Soft Grip System
  • Grip size: Size 2 to 4
  • Grip Material:  Leather or Synthetic
  • String

What About Me?

A lifetime dedicated to racquet technology and innovation

For more than five decades, I have been immersed in the world of tennis racquet and string design, manufacturing, and performance optimization. As the owner of Racquet Quest, LLC, I’ve combined deep technical expertise with hands-on innovation to set new benchmarks in racquet customization, diagnostics, and stringing.

My journey has been defined by a relentless pursuit of precision and performance—whether with professionals, college,  junior tournament players, in the lab, or in front of an audience, sharing knowledge with peers.

Advanced diagnostic technology

At Racquet Quest, technology and science drive results. I’ve integrated some of the most advanced diagnostic equipment available, alongside proprietary systems I’ve developed, to provide unmatched insights into racquet and string performance:

  • True Tension Stringing Machines – pioneering distortion-free stringing
  • Babolat Racket Station & Wilson Baiardo Stringing Machines – industry-leading accuracy
  • Babolat RDC (Racquet Diagnostic Center) – comprehensive racquet analysis
  • Questron proprietary string testing equipment – measuring ultimate tensile strength, stress/strain, knot strength, and more
    • Three-string comparative graphing tools – side-by-side performance visualization
    • Flex, In-Plane, and String Bed Stiffness devices – quantifying structural dynamics
    • Custom portable SBS device – portable precision testing

By combining these tools, I’ve been able to capture and refine the delicate balance between tension, elasticity, and structural integrity, pushing racquet performance beyond traditional standards.

Innovation in design and customization

Innovation has always been central to my work. Some of the highlights include:

  • Development of the Perfect Pallet grip system with a custom three-piece anti-vibration design
  • Expertise in Special MakeUp (SMU/Pro Stock) racquets for elite players
  • Custom racquet extensions and modifications tailored to individual needs
  • Proprietary software solutions for collecting and analyzing racquet and string performance data

These advancements have helped players—from juniors to professionals—experience greater consistency, comfort, and control on court.

Experience on the global stage

  • My expertise extends well beyond the workshop:
    • 50 years in racquet and string design and manufacturing
    • Professional event stringing services for several years at major tournaments
    • Seminar presenter for 12+ years, sharing expertise with players, coaches, and technicians
    • Delivered the acclaimed session “Understanding String” at the 1994 Super Show in Atlanta, hosted by the United States Racquet Stringers Association

This combination of hands-on service and educational leadership has helped shape best practices across the racquet service community.

Media and knowledge sharing

I believe that expertise should be shared widely. To that end, I’ve created multiple platforms to bring racquet knowledge to players and enthusiasts worldwide:

  • RacquetQuest.tennis – a hub for insights and resources on racquet technology
  • Racquet Quest Podcast, Podcastini, and Podcast Midi – covering everything from string science to on-court trends

Through these channels, I aim to make the science of racquets accessible to every level of the game.

Tennis continues to evolve, and so does racquet technology. At Racquet Quest, I remain committed to research, testing, and innovation that give players an edge while deepening their understanding of how equipment shapes performance.

Whether stringing for professionals, customizing for serious competitors, or educating the next generation of racquet technicians, the mission remains the same: deliver precision, performance, and passion through technology.

Head Auxetic 2 Radical Pro SMU

Three (3) beautiful Head Auxetic Radical Pro’s off to South Florida!

Head Auxetic 2 Radical Pro SMU

Head Auxetic Radical Pro 28

 

These racquets represent a full custom version.

These racquets are 28 inches long (71cm) with a swing weight of 336 kg/cm^2.

The grip pallet is TK82S and the grip material is Head Calf Skin.

The string is Luxilon Natural Gut 130.

 

ManufacturerNordicdots
Racquet ModelModel 99
Reference Tension46
String
MonoGut ZX Pro Black
Machine UsedTrue Tension Pro
Static
String Bed Stiffness - RDC43
String Bed Stiffness -FlexFour52.9
Strig Bed Stiffness - SBS44.7
String Bed Stiffness - ERT30
Racquet Flex, RDC62
Racquet Flex, FlexFour38.3
Racquet - In Plane Stiffness423
Weight, Grams325
Weight, Ounces11.46
Balance, mm323
Balance, Inch12.72
Length, Cm68.6
Length, Inch27.0
Head Width9.59
Head Length12.904
Head Area, cm2614.8
Head Area, Sq. Inch95.3
Beam Height @ Grip, mm23.8
Beam Height @ Mid, mm23.2
Beam Height @ Tip23.2
Beam Width @ Grip, mm11.5
Beam Width @ Throat, mm10.5
Beam Width @ Mid, mm10.5
Beam Width @ Tip, mm12.9
Number of Main Strings16
Number of Cross Strings20
Ratio.583
Main String Grid Inch/mm7.31/185.6
Cross String Grid Inch/mm9.93/252.2
Density (% of head filled with string).762
Average Cross String Space.497
Average Main String Space.457
Dynamic
Dynamic Tension, Kp, ERT30
Dynamic Tension, Lbs/in167.8
First Moment, Nm.807
Polar Moment337
Torsional Stability16
Swing Weight, Kg/cm^2321
Swing Weight, Ounces11.32
Swing Weight Calculated339.1
Power, RDC51
Control, RDC47
Manueverability, RDC73
Power, Calculated 1915.4
Head Points6.30
Head Weight, %47%
Center of Percussion21.37
Dwell Time, ms7.14
Efective Stiffness - lbs25.39
K, Lb/In137.82
Recoil Weight161.7
Twist Weight216.1
End Weight 132.7
Tip Weight 191.2
9 O'Clock90.6
3 O'Clock90.6
Butt End143.5
COF, Main.358
COF, Cross.311