how do I estimate the swingweight after adding weight?

[2ndServe]

I have a racket that is 28.5 inches long and 10.6 ounces. with a stock swingweight of 356, I've added two head leather grips, after grips/lead tape/ it weighs about 328g. I added lead tape, 14 inches total (tape is .5" wide, each inch is .5 grams) . I put them at the 3 and 9. It starts at about 5.5" from the top and is 3.5" inches long. I put two layers of 3.5" of tape on each side.

I don't have access to an swing machine. What would you guess my swingweight would be?

Thanks

btw, ridiculously heavy swingweight is a good answer, but I'm looking for a number so I can fine tune it.

edit balance was 4 HL stock

 

[Larrysümmers]

whats the balance? i would guess in the 360's or 70's i dont really think there is a way to find an exact number without a machine, but my educated guess would be from 365-375.

 

[2ndServe]

it was 4 HL stock. Thanks for the response.

 

[Tommyj]

Go to the Learning Center on the TW website and select manual racquet customization. If you know the length, weight and SW of the racquet in stock form then you can use this tool to estimate the SW after customization. All you need is the amount of weight added and the position of the weight as measured from the but end.

 

[ChicagoJack]

2ndServe,

1. i'm crazy curious about what you are doing and why.

2. you have a spalding pro extreme?

Jack

 

[ThomasTerrible]

http://twu.tennis-warehouse.com/learning_center/swingweight_calc.php

 

[TennisCJC]

follow TommyJ's advice and use TW manual customization worksheet. If you have a scale that can measure grams, a decent measuring tape, and an iPhone; you can buy the iPhone swingweight app. TW University also has instructions for calculating SW.

 

[2ndServe]

2ndServe,

1. i'm crazy curious about what you are doing and why.

2. you have a spalding pro extreme?

Jack

I'm trying to make the most stable racket I can, I like the solid stable feel of a racket on the return of serve.

I have a Prince Thunderbolt longbody.


Thanks I will use the twu