"Sweet spot enhancement?"

AR15

Professional
Anybody heard of this method of racquet stringing?

Sweet Spot Enhancement™

Sweet Spot Enhancement™
Our Exclusive "Sweet Spot Enhancement™" Process
At **** TENNIS, LLC we are extremely proud to be the developers of an exclusive stringing process that is likely to revolutionize the way you choose to string your racquet forever! Our sweet spot enhancement process™ has been developed, refined and extensively playtested by many of our customers and is the preferred stringing method used in our founder's personal racquets.

How does it work? Well, just as Coca-Cola™ and KFC™ carefully guard their secret formulas and recipes for success, we too closely guard the precise details of our sweet spot enhancement process™. We do, however, want our customers to have a sense of the properties so that they can understand why it will likely deliver a distinctly different feel than any stringing method they have previously experienced.

Tennis players who are looking for a more uniform feel, reduced dead spots, a larger sweet spot and softer playing string bed are likely to prefer this method of stringing. It delivers extra pop, softer feel and better playability without sacrificing control. It is also highly recommended for players who have experienced or are experiencing elbow pain. The process reduces shock and has been proven to eliminate pain for many of our customers who have complained of "tennis elbow." In short, for many, it is a superior method of racquet stringing.

Here's how it works. We examine the entire racquet, carefully measuring each and every string. We then take into account the string characteristics and racquet properties, enter salient data into an exclusive *** TENNIS LLC formula and calculate the premium tension for each pull of the racquet string. Using a highly accurate constant pull stringing machine, we then carefully pull each string, resulting in a customized string job designed especially to improve the performance of your racquet. This method of stringing takes considerably longer than traditional stringing, but our customers describe the outcome as "incredible." Due to the "off the charts" level of customer satisfaction, we have determined it is definitely worth the extra time it takes to install. We believe that once you try it, you too will be deliriously happy with the outcome.

Please note: We have found that it sometimes can take more than one string job to find the perfect reference tension for your particular style of play and racquet, but once it is identified, if you are like our other customers, you will be absolutely delighted with the results.

This particular stringing method is best suited for standard to regular oversize racquet heads. Results with super oversize racquets can vary. Sometimes it is not optimal to increase the sweet spot of a 115"+ head because the power is amplified too much and there is a possibility it may become difficult to control. Still we have customers with super oversized racquets who use and prefer their racquet to be strung using our exclusive sweet spot enhancement process™.

We are supremely confident that once you try this method of stringing and experience the results for yourself on the court, you will be ready to convert. If you choose to try our exclusive sweet spot enhancement process™ and are unhappy for ANY reason, we will gladly restring your racquet using the same string with the traditional method of stringing at no additional cost to you. We stand behind our products and service 100%!
 

AR15

Professional
watch_the_ball said:
It's a form of proportional stringing.

If I pull different strings at different tensions, won't they all eventually have about the same tension after the strings have shifted within the frame?
 

ambro

Professional
You would think so, but friction from the grommets keep the tension between strings from evening out.
 

snoflewis

Legend
AR15 said:
If I pull different strings at different tensions, won't they all eventually have about the same tension after the strings have shifted within the frame?

actually, according to some (i've never tried it), there's enough friction between the grommets and the string for it to not lose tension. there are people who string different tensions for mains and crosses w/ 1 piece and they claim that it's fine...

however, you can get something similar to this "sweet spot enhancement". just string the mains higher than the crosses or the crosses lower than the mains by about 2-4 lbs. it's done by a number of tennis players including myself.
 

thejackal

Hall of Fame
what I do: compared to your normal tension, -2lb in the middle mains, +6lb on the outer 2 mains, +2lb on crosses
 

Mr Korny

New User
do you mean +2 on the middle 2 mains, -6 on the outer mains, and -2 on the crosses? What your saying kind of goes against what I have heard from everyone else
 

man-walking

Semi-Pro
snoflewis said:
there are people who string different tensions for mains and crosses w/ 1 piece and they claim that it's fine...
Yeah, if one is smart enough to take advantage of sharp angles when turing to crosses, Eh? :D;)
 

buder

Banned
AR15 said:
Anybody heard of this method of racquet stringing?

Proportional stringing meets religion meets capitalism.

Proportional stringing: tensioning shorter strings at lower tensions

Religion: the result is mysteriously gained and plays out of this world

Capitalism: at a high cost


pahhhhhllllleaaaassssssseeeeee
 

thejackal

Hall of Fame
Mr Korny said:
do you mean +2 on the middle 2 mains, -6 on the outer mains, and -2 on the crosses? What your saying kind of goes against what I have heard from everyone else

no, the +6 on the outer strings compensates for the tieoff. no matter what it seems, it works for me.
 

AR15

Professional
snoflewis said:
actually, according to some (i've never tried it), there's enough friction between the grommets and the string for it to not lose tension. there are people who string different tensions for mains and crosses w/ 1 piece and they claim that it's fine...

however, you can get something similar to this "sweet spot enhancement". just string the mains higher than the crosses or the crosses lower than the mains by about 2-4 lbs. it's done by a number of tennis players including myself.

I don't think proportional stringing will work with Prince O3 racquets. The O-Ports don't provide hardly any friction and would not hold the tension differences between them.
 

nalbandian_fan

Semi-Pro
Here's my theory on the idea of proportional stringing. I have no evidence to back this up, its just a logic and idea that occurred to me while I was thinking about proportional stringing. Read it and let me know if you think it makes sense or if you can think of a way to prove me wrong.

Proportional stringing will only have an effect initially, and eventually the stringbed will even out... not because the strings slip through the grommets, there is enough friction in the grommets to give each string its own tension. The reason the stringbed will still even out is because the tighter strings will lose tension faster than the looser ones untill it relatively evens out. For example, if the center mains are at 58 and the number 2 mains are at 56, then the center mains are going to sustain more impact and lose more tension than the number 2 mains will, so after a few hours of hitting the center and number 2 mains will all be 54 pounds... and so on until all the mains in the stringbed relatively even out to the same tension. I don't think this happens as much with the crosses though because when hitting with topspin, the mains take most of the impact and affect the performance of the stringbed far more than the crosses do. So, IMO, stringing the crosses lower than the mains, like snowflewis said, is a far more practical and effective way of "enhancing the sweet spot".
 

buder

Banned
nalbandian_fan said:
Here's my theory on the idea of proportional stringing. I have no evidence to back this up, its just a logic and idea that occurred to me while I was thinking about proportional stringing. Read it and let me know if you think it makes sense or if you can think of a way to prove me wrong.

Proportional stringing will only have an effect initially, and eventually the stringbed will even out... not because the strings slip through the grommets, there is enough friction in the grommets to give each string its own tension. The reason the stringbed will still even out is because the tighter strings will lose tension faster than the looser ones untill it relatively evens out. For example, if the center mains are at 58 and the number 2 mains are at 56, then the center mains are going to sustain more impact and lose more tension than the number 2 mains will, so after a few hours of hitting the center and number 2 mains will all be 54 pounds... and so on until all the mains in the stringbed relatively even out to the same tension. I don't think this happens as much with the crosses though because when hitting with topspin, the mains take most of the impact and affect the performance of the stringbed far more than the crosses do. So, IMO, stringing the crosses lower than the mains, like snowflewis said, is a far more practical and effective way of "enhancing the sweet spot".

bingo! [with proportional stringing, you are using more money and energy to get to the same place. tighter strings lose tension quicker and eventually even out with looser strings]
 

Stan

Professional
Buder et al...

Have you ever tried and/or measured the effects of proportional stringing? I suspect not. If you have, your posts would surely be different.

According to my measurements when using proportional stringing, the individual strings maintain different tensions throughout the life of the string job. I have seen no evidence of the tension equalizing or becoming even. I suspect the posts in this thread suggesting equalization are speculation and not based on any experience or evidence. In other words they are incorrect opinions.
 

siow_a

Rookie
"According to my measurements when using proportional stringing, the individual strings maintain different tensions throughout the life of the string job."


And how do you measure that?

Are there MRT that want to chime in on this topic(proportional stringing)?
This is a new one for me.

I always go 2-4lbs less on my crosses to expand the sweetspot.
 

Stan

Professional
You can measure each individual string with a simple StringMeter, cost is approx. $20.00. Note: I am an MRT.
 

psp2

Banned
Stan said:
You can measure each individual string with a simple StringMeter, cost is approx. $20.00. Note: I am an MRT.

How can you, as an MRT, claim that you can measure an individual string's tension on a full stringbed?

Your statement is baffling.
 

Stan

Professional
psp2 said:
How can you, as an MRT, claim that you can measure an individual string's tension on a full stringbed?

Your statement is baffling.

Here's an experiment for you. On a stringbed without proportional stringing, use a stringmeter to take the reading on a center main. Now use the same stringmeter and take a reading on an outer main. What do think think you will find???

You will likely find the outer main reading is tighter than the center main, usually by a substantial margin. The string meter gives you relative tension of individual strings in the context of a stringbed. That is precisely why I don't care for them. I much prefer the RDC readings which measure the stiffness of the entire stringbed. However, for proportional stringing much can be learned by measuring and recording tensions for individual strings at various points in the stringbed. A good MRT is always finding ways to measure and document his work. The same stringmeter readings on proportional stringing do not vary nearly as much as they do on a racquet where the same tension was pulled on each string. Check and re-check will bear out that the tension drops at an equal rate on the short as well as the long strings. There is no evidence I have seen of this rate varying.
 

psp2

Banned
Stan said:
Here's an experiment for you. On a stringbed without proportional stringing, use a stringmeter to take the reading on a center main.

Let me stop you right here. You are NOT measuring each string's tension via a string meter. You are measuring the local string bed's deflection.

Like I said, there is NO way for you to take a TENSION measurement on a single string via a string meter.

The above is my point.
 

Stan

Professional
psp2 said:
Let me stop you right here. You are NOT measuring each string's tension via a string meter. You are measuring the local string bed's deflection.

Like I said, there is NO way for you to take a TENSION measurement on a single string via a string meter.

The above is my point.

Let me boldly suggest you pick up and familiarize yourself with "The Physics and Technology of Tennis" by Brody, Cross and Lindsey. Specifically Chapter 34, Measuring Tension, page 312 - 313. Excerpts...

"The Stringmeter contains two small cylindrical rods 1/3 of an inch apart that can be inserted anywhere in the stringbed to measure the tension of any desired string....Nevertheless, a Stringmeter can be used to determine if the tension has dropped with time, and roughly by how much and it can be used to measure the tension in every single string if you have the patience...the Stringmeter is the only instrument I know of that can give this particular information. In principle one could use a strain gauge located on every string to measure the tension in each string, but the Stringmeter is a lot more convenient."

Also you might want to call the USRSA and ask to speak with Crawford Lindsey, I am sure he will be happy to help further your education on the subject.
 

psp2

Banned
Stan said:
Let me boldly suggest you pick up and familiarize yourself with "The Physics and Technology of Tennis" by Brody, Cross and Lindsey. Specifically Chapter 34, Measuring Tension, page 312 - 313. Excerpts...

"The Stringmeter contains two small cylindrical rods 1/3 of an inch apart that can be inserted anywhere in the stringbed to measure the tension of any desired string....Nevertheless, a Stringmeter can be used to determine if the tension has dropped with time, and roughly by how much and it can be used to measure the tension in every single string if you have the patience...the Stringmeter is the only instrument I know of that can give this particular information. In principle one could use a strain gauge located on every string to measure the tension in each string, but the Stringmeter is a lot more convenient."

Also you might want to call the USRSA and ask to speak with Crawford Lindsey, I am sure he will be happy to help further your education on the subject.

Let me educate you on the principal of static physics. The ONLY true way to measure the tension (linear stress) is by having a device similar to a spring with a known spring constant "k", or a strainguage which utilizes an electrical resistance material to measure impedence or if you know the other 3 stresses in a 4-cross springbed (local springbed).

I fully understand how the above mentioned springmeter works. That only measures the local stress by caluclating the deflection of a very short piece of string. That measurement does NOT cascade up the true tension of a full string.

We can simply agree to disagee and get back to the subject on hand.
 
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