Swingweight

Discussion in 'Racquets' started by peteys1, Feb 8, 2013.

  1. peteys1

    peteys1 New User

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    Anybody know how to get swingweight up without making the racket head heavy with lead?

    Head Prestige mp leaded up to 365 g but swingweight is only 237. Wanted to bring it up to around 350 to try. Have 5 grams in handle, 7 inches up and 10g total at 3 and 9 and 5g total at 12.

    balance point is around 12.6
    12.28 seconds for 10 swing test
    25 5/16" from butt to bottom of top string.

    much appreciated.
     
    #1
  2. isilra

    isilra Rookie

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    I don't think a sw of 237 is possible with a prestige mp. Stock form has 310 sw and you also have 15g on the loop. Now it should be even more than 310 grams.

    To answer your question, the only way to increase sw is adding weight to the loop which you have done. Just add weight by watching the balance and stop when you are about to get to the even balance.
     
    #2
  3. peteys1

    peteys1 New User

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    Made a mistake. Wasn't starting on 0 when doing the 10 swing test. But thank you.
     
    #3
  4. ART ART

    ART ART Semi-Pro

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    So, what's the correct SW ?
     
    #4
  5. ChicagoJack

    ChicagoJack Hall of Fame

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    Hi peteys1

    When doing customizations, I recco using the customization worksheet first for planning and estimating purposes. It does a great job of estimating the balance and SW ahead of time, for up to 5 lead locations. Once you have things in place, check your actual sw, mass and balance, then make your final little tweaks from there.

    I've put in the specs for the IG Prestige MP, and your lead locations to get you started. Don't know how you got the rest of the way to 365, but you'll need to include your leather grip, dampener, over grip or whatever other stuff you've added to the stock specs.

    Just eyeballing what you are up to, you will need to add quite a bit more lead than 5 grams in the palete to offset all that hoop lead. For 15 grams of lead in the hoop, I'm likely adding 20-30 grams of silicone. Lead at 7" tells me which threads you've been reading, but lead closer to the butt cap will do a much better job of keeping your frame as headlight as possible, while keeping your overall mass as low as possible.

    Customization Worksheet:
    http://twu.tennis-warehouse.com/learning_center/customizationReverse.php

    You can get your starting specs here (needed for the worksheet)
    http://www.tennis-warehouse.com/Head_YOUTEK_IG_Prestige_Midplus/descpageRCHEAD-HYIPMP.html

    [​IMG]

    -Jack
     
    Last edited: Feb 9, 2013
    #5
  6. peteys1

    peteys1 New User

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    13.30 for 10 swings
    Bal point 13
    25.3 " from butt to string
    Removed lead from handle and moved to 12
    Also have some at 9 and 3
    Using tw leather grip with yonex over grip

    Final weight is 363g
    And swing weight is 336

    Will try it out this week

    What do you think?
     
    #6
  7. peteys1

    peteys1 New User

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    13 inch balance point would make it 4 points HL?
     
    #7
  8. ART ART

    ART ART Semi-Pro

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    It's much better to measure lenght or balance point in centimeters.
     
    #8
  9. ChicagoJack

    ChicagoJack Hall of Fame

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    Yes, 13 inches = 33.02 cm = 4 point HL.

    BTW, you'll get a much more accurate reading on the swing and stop watch method by doubling your count to 20, and doubling the other parameters to match. I think your sw reading might be a bit on the low side if anything.

    Jack
     
    Last edited: Feb 9, 2013
    #9
  10. peteys1

    peteys1 New User

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    That's a great idea. I'll try that.
     
    #10
  11. corners

    corners Legend

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    Yeah, to get an accurate swingweight measurement you really need to get balance point and length to the millimeter, preferably the half-millimeter.
     
    #11

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