Category Archives: News!
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!
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!
|Racquet Model||Prince Vortex 300|
|Reference Tension||56 lbs - 25.4kg|
|Machine Used||True Tension Professional|
|Racquet Flex, RDC||59 - After stringing|
|Racquet Flex, FlexFour||40.0|
|Racquet - In Plane Stiffness||526.3 lbs/Inch|
|Head Area, cm2||652|
|Head Area, Sq. Inch||101.1|
|Number of Main Strings||14|
|Number of Cross Strings||21|
|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|
|Swing Weight, Kg/cm2||319|
|Swing Weight, Ounces||11.25
|Swing Weight Calculated||329.7|
|Head Weight, %||46.6|
|Center of Percussion||21.7|
|Dwell Time, ms||9.48|
|Efective Stiffness - lbs||30.2|
|Coefficient of Friction: M||.400|
|Coefficient of Friction: X||.262|
The World Headquarters of Racquet Quest is very happy to present the latest addition to our headquarters!
My daughter and her family that live in Columbus presented me with the iconic Columbus, Indiana “C” bike rack recently! This bike rack is something I have wanted for a while!
In case you don’t know, Columbus, Indiana is well known for the many architectural buildings and pieces by many very famous people!
The bike was donated by Davids Cycle World and painted by me! A very close inspection of the paint job should be avoided!
Anyway, we are very happy to have this addition to the World Headquarters!
For the past few years and certainly the past year Racquet Quest has been committed to tennis racquets and yours is included!
Hopefully the days of the “mask”are over and we can resume actually talking to each other and be understood! Of course if you prefer to wear a mask that is OK, too!
Here is what is not OK!
Not caring about your tennis racquet is not OK, and by that I mean keeping it in the best possible condition. That includes string, grip, grommet sets, overgrips and general reactions of beating it against the ground or net!
We have seen five year old racquets that look brand new and five day old racquets that are in really poor shape! One of the most damaging “strokes” in tennis is the ball pickup stroke! This is not a stroke at all but a way to keep from bending over to pick up balls!
Using the racquet head to scoop up the balls is easy and cool! It is also the quick way to ruin the bumper guard which is there to protect the Racquet from normal stroke, not pick-ups!
So, what do you do about it? The next time you consider scooping up balls with the racquet consider tapping the ball to start it bouncing or simplpy use the fingers on your hand to pick up the ball…that would be good!
Grip size, in this case, does matter! However, for several years the largest grip size available has been a 4 ⅝, or just 5 for short.
This is simply the circumference of the finished grip forward of the butt cap. Of course the butt cap is of a size that will capture the butt of your hand for comfort and control.
But what happens if you need a grip size larger than 4 ⅝? In years gone by a shrink tube was applied to the current grip pallet and the size was increased accordingly. Typically only two (2) shrink tubes could be used and even then the grip facets became “rounded”.
Lucky for us, and you of course, we can now print grip pallets in any size required! The largest one so far is a 5 1/4 for a player in New York using a Babolat Pure Aero.
Each printed pallet is made specifically for a racquet, not just a “one size fits all” approach due to very subtle variations in size, especially the inner shaft.
In this case the pallets were longer to accommodate large hands so the length of the racquet was increased through the use of these pallets and a printed extender.
The printed pallet must fit securely and the best way to assure the fit is to have the racquet.