Category Archives: Health
Our Favorite String
A frequently asked question by our clients at the World Headquarters of Racquet Quest, LLC is “what is your favorite string?”
I am going to tell you what it is, and tell you why it is, and why, I believe, it should be your favorite string as well!

VS Team v VS Team
It should come as no surprise that natural gut is our favorite string! Well, of course, you say! It is probably everyones favorite but it is way too expensive for most recreational players! You are correct that natural gut is everyones “favorite” string, however, you may not be correct about it being too “expensive” for recreational players!
What follows is predicated on the belief that “performance” is the primary factor in selecting a string.
On the positive side:
- Natural gut plays better longer than any other material.
- Natural gut is more stable than most string materials.
- Natural gut is more forgiving (comfort) than most other materials.
- Natural gut is more eco-friendly than other materials.
- Natural gut is a good hybrid component.
On the not so positive side:
- Natural gut is expensive @ $70.00 to $75.00 (installed).
- Natural gut is more expensive than other materials.
- Making natural gut string is very labor intensive.
- Making high quality natural gut is limited to a “few” major manufacturers.
- Natural gut can be affected by moisture.
And, how do you quantify “plays better”, anyway? Some players are fine with string that has long since offered any performance! Some strings have a “play”life of a couple of hours! So, the player must decide on what is important.
But, if you ask us, natural gut is our favorite string!
String Evaluation Program
Racquet Quest, LLC has for years been doing the extensive evaluation of racquets and string for the benefit of our client’s customization requirements.
Now we are making this evaluation “program” available to anyone that wants to dig deeper into the workings of the string in the racquet!
This is serious stuff and requires significant resources but it is worth it!
Please contact us of you would like to take advantage of our evaluation program!

Prince Vortex 300
The new Prince Vortex design is a new offering of an older string pattern with 14 main strings and 21 cross strings in a variable taper beam…whew! You can see by the throat design that the main strings are longer that a conventional throat design. The longer the main strings the more energy they can return…sort of, and in some cases!
The beam starts at the grip with a strong 25mm then tapers into a 23mm at the throat and then back to 25mm at the tip. Do not let the beam dimensions fool you! The RDC flex of 59 after stringing is quite acceptable for most every player style.
We have been taking coefficient of friction (COF) data for years but have not included it this review format, until now. The 14×21 string pattern is unique enough that it is worth including. You will see the numbers on the review specs so we won’t go into them now, however the numbers are interesting.
The 14 main strings contribute to a very “open” area right about where most extreme “spin” shots are hit according to our data of string failure positions.
The frame geometry is sort of “Aero” like. The shaft is trapezoidal that transitions into a “reverse” trapezoid around the head. It makes the racquet look stiffer than it is!
Take a look at the specs then pick up a demo to see what the numbers mean to you!
Manufacturer | Prince |
---|---|
Racquet Model | Prince Vortex 300 |
Reference Tension | 56 lbs - 25.4kg |
String | Victrex 7718 |
Machine Used | True Tension Professional |
ASPS, RDC | 45 |
ASPS, FlexFour | 58.5 |
Racquet Flex, RDC | 59 - After stringing |
Racquet Flex, FlexFour | 40.0 |
Racquet - In Plane Stiffness | 526.3 lbs/Inch |
Weight, Grams | 322 |
Weight, Ounces | 11.36 |
Balance, mm | 320 |
Balance, Inch | 12.60 |
Length, Cm | 68.6 |
Length, Inch | 27.008 |
Head Width | 9.94 |
Head Length | 12.94 |
Head Area, cm2 | 652 |
Head Area, Sq. Inch | 101.1 |
Number of Main Strings | 14 |
Number of Cross Strings | 21 |
Ratio Cross/Mains | .512 |
Main String Grid | 7.30 |
Cross String Grid | 9.50 |
Density (% of head filled with string) | .686 |
Average Cross String Space | .452 |
Average Main String Space | .521 |
Dynamic Tension, Kp, ERT | 32 |
Dynamic Tension, Lbs/in | 176.98 |
First Moment, Nm | .790 |
Polar Moment | 336 |
Torsional Stability | 17 |
Swing Weight, Kg/cm2 | 319 |
Swing Weight, Ounces | 11.25 |
Swing Weight Calculated | 329.7 |
Power, RDC | 47 |
Control, RDC | 52 |
Manueverability, RDC | 74 |
Power, Calculated | 1921.1 |
Head Points | 7.24 |
Head Weight, % | 46.6 |
Center of Percussion | 21.7 |
Dwell Time, ms | 9.48 |
Efective Stiffness - lbs | 30.2 |
K, Lb/In | 144.23 |
Recoil Weight | 165.41 |
Twist Weight | 237.56 |
End Weight | 134.5 |
Tip Weight | 189.0 |
9 O'Clock | 96.2 |
3 O'Clock | 96.1 |
Butt Cap | 131.4 |
Coefficient of Friction: M | .400 |
Coefficient of Friction: X | .262 |
New KT Tape Products!
KT Tape is probably the most recognized gear any athlete can wear! You see it on many world-class athletes typically placed where they may be experiencing discomfort or want to reduce the possibility of such!
Racquet Quest has added three (3) new KT Tape products we believe are essential to better performance.
The new Wave:
- Clinically proven and FDA cleared device for relief of chronic musculoskeletal pain
- 250 hours of battery life for consecutive or intermittent use
- Sensation-free electromagnetic pulses that are safe and effective
- Flexible loop is easy to place
- Water resistant, safe to wear during regular physical activity and during sweating
The new Chafe Safe:
- Protects friction-prone areas from blisters & hot spots for up to 24 hours
- Sweat & water resistant
- Mess-free, non-sticky, & smooth application
- No clogging of pores
The new Anti Blister tape:
- Designed to help prevent athlete blister, chafing, and hot spot formation*
- Ultra-durable, flexible, and breathable synthetic fabric
- Easily conforms to skin and extremely thin to minimize friction
- Precut 3.5” strips for convenient use in most common treatment areas
- KT Tape is proud to provide the KT PERFORMANCE + and KT RECOVERY + product lines, supporting athletes of all levels and helping them to perform at their best. Train longer, finish stronger
These important products contribute to Racquet Quest’s commitment to keeping our clients playing comfortably forever!
If you are new to KT Tape just click here and you will go to the very comprehensive “how to” page!