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ten11 10-08-2012 11:33 AM

Head light research
 
I got a pair of pro stocks and just too head light because previous owner removed some lead under grommet. In my research of head light, I found this page http://tt.tennis-warehouse.com/showp...18&postcount=1

So I come up with this. (If I did conversion or calculation wrong, please be kind to let me know and I will fix it.)
HTML Code:

Name        Weight(g)        Weight(oz)        Balance(cm)        Balance(inch)        Lenghth        Length(inch)        headlight(in.)        points HL
DANIEL NESTOR          374        13.19          29.1        11.46          69.5        27.36        2.22        17.80
JUAN MONACO          367        12.95          31.4        12.36          70        27.56        1.42        11.34
MARIO ANCIC          366        12.91          29.3        11.54          69        27.17        2.05        16.38
JAMES BLAKE          365        12.88          30.5        12.01          68.5        26.97        1.48        11.81
KEVIN ULLYETT          360        12.70          29.5        11.61          70        27.56        2.17        17.32
STANISLAS WAWRINKA          359        12.66          31        12.20          68.5        26.97        1.28        10.24
MAX MIRNYI          359        12.66          30.4        11.97          68.5        26.97        1.52        12.13
ANDREAS SEPPI          356        12.56          30.8        12.13          70        27.56        1.65        13.23
NICOLAS KIEFER          350        12.35          32.2        12.68          69        27.17        0.91        7.24
JONAS BJORKMAN          349        12.31          30.2        11.89          70        27.56        1.89        15.12
JUAN-IGNACIO CHELA          349        12.31          32.8        12.91          70        27.56        0.87        6.93
RICHARD GASQUET          349        12.31          31.5        12.40          68.5        26.97        1.08        8.66
JARKKO NIEMINEM          348        12.28          30.5        12.01          71        27.95        1.97        15.75
ARNAUD CLEMENT          348        12.28          30.8        12.13          70.5        27.76        1.75        14.02
SIMON ASPELIN          348        12.28          31        12.20          68.5        26.97        1.28        10.24
NICOLAS LAPENTTI          348        12.28          31.5        12.40          68.5        26.97        1.08        8.66
PAVEL VIZNER          347        12.24          31        12.20          69.5        27.36        1.48        11.81
IVO KARLOVIC          347        12.24          31.5        12.40          69        27.17        1.18        9.45
VINCENT SPADEA          347        12.24          30.5        12.01          68.5        26.97        1.48        11.81
FILIPPO VOLANDRI          347        12.24          30.8        12.13          68.5        26.97        1.36        10.87
SEBASTIEN GROSJEAN          345        12.17          31.7        12.48          71        27.95        1.50        11.97
NENAD ZIMONJIC          344        12.13          30.7        12.09          69.5        27.36        1.59        12.76
PAUL HANLEY          340        11.99          30.4        11.97          70        27.56        1.81        14.49
TOMMY ROBREDO          340        11.99          31.5        12.40          69.5        27.36        1.28        10.24
MARC GICQUEL          340        11.99          31.2        12.28          68.5        26.97        1.20        9.61
PAUL-HENRI MATHIEU          338        11.92          31.3        12.32          68.5        26.97        1.16        9.29
NICOLAS ALMAGRO          337        11.89          31.2        12.28          68.5        26.97        1.20        9.61
POTITO STARACE          336        11.85          31        12.20          68.5        26.97        1.28        10.24
G.GARCIA LOPEZ          336        11.85          31.5        12.40          68.5        26.97        1.08        8.66
J.W TSONGA          335        11.82          31        12.20          69.5        27.36        1.48        11.81
FERNANDO VERDASCO          335        11.82          30.4        11.97          68.5        26.97        1.52        12.13
MICHAEL LLODRA          333        11.75          30.8        12.13          68.5        26.97        1.36        10.87
OLIVIER ROCHUS          331        11.68          31.1        12.24          71.5        28.15        1.83        14.65
THOMAS JOHANSSON          331        11.68          31.2        12.28          68.5        26.97        1.20        9.61
JC FERRERO          330        11.64          32.5        12.80          71.5        28.15        1.28        10.24
DAVID FERRER          330        11.64          32        12.60          71        27.95        1.38        11.02
NIKOLAY DAVYDENKO          330        11.64          32        12.60          70        27.56        1.18        9.45
FABRICE SANTORO          328        11.57          31        12.20          71        27.95        1.77        14.17
GILLES SIMON          327        11.53          31        12.20          68.5        26.97        1.28        10.24
MIKHAIL YOUZHNY          320        11.29          31        12.20          68.5        26.97        1.28        10.24
RAFAEL NADAL          319        11.25          32.5        12.80          68.5        26.97        0.69        5.51
ALBERT MONTANES          316        11.15          33        12.99          70        27.56        0.79        6.30
JURGEN MELZER          314        11.08          31.2        12.28          70.5        27.76        1.59        12.76
FELICIANO LOPEZ          312        11.01          32.4        12.76          70        27.56        1.02        8.19
CARLOS MOYA          306        10.79          36.2        14.25          69        27.17        -0.67        -5.35


ten11 10-08-2012 11:37 AM

To my surprise, the average of head light is 10.88 points.
max 17.80
total player is 45
great than 10 point headlight: 30
great than 8 point headlight: 39
great than 6 point headlight: 42

If you want the excel file I have with macro, let me know and I can share with you.

TennisCJC 10-08-2012 12:22 PM

Are these strung or unstrung specs? The average of 10.88 points HL is a bit surprising.

ten11 10-08-2012 12:32 PM

Quote:

Originally Posted by TennisCJC (Post 6942721)
Are these strung or unstrung specs? The average of 10.88 points HL is a bit surprising.

based on this link, it is unstrung spec.
http://tt.tennis-warehouse.com/showp...72&postcount=5

TennisCJC 10-09-2012 05:44 AM

Then the 10.88 average points HL for unstrung would move about 3 points to 7.88 average points HL on strung rackets.

The weight would also increase 16-19 grams. So, the average weight of 12.022 oz would go up to about 12.622 oz.

Basically, modern pros are still play fairly heavy rackets with a HL balance. Same as 30 years ago but just a wee bit lighter.

Prodigy1234 10-09-2012 02:29 PM

It seems anyone from Gilles Simon down would get pushed around.

ten11 10-09-2012 05:05 PM

Quote:

Originally Posted by Prodigy1234 (Post 6944800)
It seems anyone from Gilles Simon down would get pushed around.

The list is sorted by the weight of the unstrung racquet in reverse order.

One of the many things amazed me is the last one, Carlos Moya, seems he used stock pure drive with nothing add to it. Even Nadal only got 19 gram more than stock aeropro drive. Make me wonder if these pros can use it as is, why can't I?

Prodigy1234 10-10-2012 04:00 AM

I know the weight is unstrung, maybe Simon was pushing it, how about from MIKHAIL YOUZHNY down. I mean Mikhail's racquet strung is about 11.89 ounces, I know plenty of people that use a heavier racquet than that

TennisCJC 10-10-2012 05:39 AM

Quote:

Originally Posted by ten11 (Post 6945026)
The list is sorted by the weight of the unstrung racquet in reverse order.

One of the many things amazed me is the last one, Carlos Moya, seems he used stock pure drive with nothing add to it. Even Nadal only got 19 gram more than stock aeropro drive. Make me wonder if these pros can use it as is, why can't I?

Moya's spec above are 6 Head Heavy unstrung. Strung, it would be around 9 points Head Heavy. Is the stock version of this racket really that head heavy? There is another thread somewhere in the forum with more details on a Moya racket, but I think he added lead to the head to make it so HH and had a swing weight around 370 grams.

Nadal is not head heavy but less head light than most. He also adds lead to the head and his swing weight is pretty high too - over 350 grams.

Neither uses a stock racket and both have high swing weights.


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