# Category Archives: Stringing Frequency

## Our Questron in Action!

As you know, Racquet Quest is a data-driven business, and data requires numbers. To generate those numbers, we have designed and built several devices.

One device is the Questron!

The Questron is used to test every string we receive, and the data is compiled to understand where that particular string fits.

So, instead of talking about it we have included a short video!

Thank you for watching our Questron in Action!  If you have a question, or a particular string of interest, please let us know.  We may have already taken the data!  On GASP.network there are many graphs of previous tests.  GASP.network is a membership (\$40.00 one time) site.

## SBS…what is it and why should we care?

We have made several posts regarding SBS, which is “String Bed Stiffness” and this is another one!

If you read this post we really need your comment(s), really!

String bed stiffness is the “feeling” when the ball hits the string on a tennis racquet.  Due to the various string materials there will be “soft” and “hard” feelings.  But wait, there’s more!

The string bed is made up of several strings, some longer called the Main string (M)and some shorter called the Cross string(X).  Using “reference” tension each of the sets of string will be pulled at the same machine setting!  It the machine is set at 50 pounds the tension head will stop pulling when it feels 50 pounds of resistance, regardless of what he tension inside the racquet head may be.

SBS is the most effective data for comparing tennis racquet stringing!

Let’s say you come into the world headquarters and we ask you what SBS you would like to have?  Would you know?  Probably not and not many would!  We have grown up using the term “reference tension”, not SBS.

Reference tension is “number” you would ask your racquet technician to set the stringing machine tension system on.  That number will probably be between 30 and 60 pounds (≈13 to 26 Kilo).

So, depending on many other variables, such as string material, string pattern, stringing machine, stringer technique, etc., you can end up with may different versions of the same “reference tension”.

A better way, and one we have been using for over thirty (30) years, is SBS but not everyone has bought into the concept, even though a qualified racquet technician will have a way to measure SBS!  Maybe because it is too much trouble to figure out what your desired SBS from machine X would be from machine A!  It is not!

There have been several really good SBS data collection devices but they have been difficult to use, and pricy!  Not to mention gigantic!

A call to action!
So here is where you come in,

Would you purchase a SBS data collection device?

How much would you pay for such a device?

Would you prefer a mechanical device or an electronic device?

The device must be portable, that is easily carried in a racquet bag or backpack

Yes or It doesn’t matter

It must be easy to use.

If you use an SBS device would you use a racquet technician that did not know what SBS is or how to measure it?

Thank you for adding your comments to this discussion!  It is important stuff!

## And The Winner Is…

If you know anything about Tecnifibre yo know they make some of the best multifilament strings in the business!

The winner is Tecnifibre MultiFeel 17!

This string, MultiFeel, is a very “soft” polyurethane bonded construction that offers playability and a good value!

Tecnifibre MultiFeel !7 Gauge

This graph shows the high elongation and nice elasticity of this string.  The fairly linear slope up to failure would indicate some consistency of shot all the way up to breakage!

The knot strength is pretty good for a thin multifilament and we can say from experience that the know is going to be fine when property “tightened” and large enough to not slip bak into the grommet barrel.

If you are considering a multifilament this would be a good one to try!

## And the winner is…overview

Racquet Quest is going to add a “winner” of the week to our website as a way to develop a fun way to look at string!

Each week we will select a string that has exhibited outstanding properties from one of five (5) major categories:

• Synthetic Gut
• Mulit-filamanet
Nylon
PEEK
• Natural gut
• PEEK Monofilament
• Polyester Monofilament

The winning string must have been installed in the most recent week either in a client or demo racquet.

We will include as much information as possible including graphs and the country of origin.

We will try to post “And the Winner is…” on Friday so take look!

## 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!