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Author Topic: Ending side weight on Rev. Lev. drills  (Read 2719 times)

J_Mac

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Ending side weight on Rev. Lev. drills
« on: March 08, 2005, 04:38:08 AM »
Ebonite suggests that you take the ball to negative 1/2 oz. when drilling rev leverage layouts.   I was wondering why?  I'm toying with leaving 3/4 oz. positive weight in a TPC Player I'm having drilled today.  What difference should this make and is there a reason why negative weight is recommended by Ebonite?
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J_Mac

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Re: Ending side weight on Rev. Lev. drills
« Reply #1 on: March 08, 2005, 11:09:27 PM »
C'mon guys, surely someone has some input....
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American beer is like making love in a canoe. It's f*cking close to water. - Monty Python

Why is American beer served cold? So you can tell it from urine. - David Moulton
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charlest

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Re: Ending side weight on Rev. Lev. drills
« Reply #2 on: March 09, 2005, 05:18:42 AM »
FWIW I believe that Ebo is just hedging their bets because rev leverage drillings can be so spookily early in their reactions. In case, it's not enough, the negative side weight (or thimb or bottom weight) will have some effect on making it even earlier, in theory. The degre to which it will do that in dynamic cored balls is HIGHLY debatable.
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T-GOD

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Re: Ending side weight on Rev. Lev. drills
« Reply #3 on: March 09, 2005, 07:23:11 AM »
I agree with Charlest. Ebonite is hedging their bet with the negative side weight.

The rev leverage layout is supposed to get the ball into an earllier roll, so the negative side weight will aid in enhancing this reaction.

I also believe that weights do matter, so it's a good concept by Ebonite to use negative weights with the rev leverage layout. =:^D
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J_Mac

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Re: Ending side weight on Rev. Lev. drills
« Reply #4 on: March 09, 2005, 11:37:38 AM »
Too bad I already had to drill a huge hole to get the ball legal.  I don't think it's possible to get to negative with this ball.  I already have a 1 3/16" hole nearly 3" deep on the PSA and I had to take the fingers to about 2.5" to get the finger weight under an ounce.  I'll never do a "fancy" drill on a ball with 4 ounces of top weight again.
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American beer is like making love in a canoe. It's f*cking close to water. - Monty Python

Why is American beer served cold? So you can tell it from urine. - David Moulton
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charlest

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Re: Ending side weight on Rev. Lev. drills
« Reply #5 on: March 09, 2005, 11:41:17 AM »
Rev Leverage is not so much fancy (in my opinion, FWIW) but more extreme, trying to get a ball to do what it wasn't really intended to do. I understand we all do this from time to time. Hope it works for you.
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charlest

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Re: Ending side weight on Rev. Lev. drills
« Reply #6 on: March 09, 2005, 07:19:28 PM »
Thanks, King.
Mine was, as indicated, just a guess.
I am also of the that persuasion, believing core modification is more explanatory of the changes than any weight removal is. His quotation deftly explains it!

J-Mac,  Take that to the bank.

King, don't be so late next time, making me dangle there, under the sword of Damocles!
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J_Mac

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Re: Ending side weight on Rev. Lev. drills
« Reply #7 on: March 09, 2005, 09:01:36 PM »
quote:
if you can keep up with Mr. Hickland, you may have noticed that he shares the "weight is not an issue" side of the cg argument.  the x-hole back to negetive is to help insure a larger, deeper hole into the core.

notice the revised instructions for a "rev-lev" drill in the big deal...

 
quote:
Balance Hole: Place balance hole in HMB logo, targeting 1/2 oz. Negative side weight. Choose a drill bit size that allows the hole to be 3” deep. (It is acceptable to have less than 1/2 oz. Negative side weight as long as the balance hole size/depth is maxed out at 1 1/8” drill bit and 3” deep, providing the ball meets ABC specifications)


here
http://www.hammerbowling.com/shop_stuff/detail.php?drilling=Drilling%20Instructions%205
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kotm

"awaiting the hour of reprisal, your time slips away..."


Uhhh...  isn't the max allowable balance hole size 1 3/16"?
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American beer is like making love in a canoe. It's f*cking close to water. - Monty Python

Why is American beer served cold? So you can tell it from urine. - David Moulton
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khamûl

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Re: Ending side weight on Rev. Lev. drills
« Reply #8 on: March 09, 2005, 09:52:44 PM »
quote:
Uhhh... isn't the max allowable balance hole size 1 3/16"?


No, it is 1 1/4".  In reference to your highlighting of the 1 1/8", this matters how?
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