Post by: monstercrank on March 26, 2006, 04:06:00 AM
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Go MaxBob, Chris Barnes, Tommy Jones, Patric Allen, and Jason Couch!!!!!
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bowling is my way of telling pins some times they just need to lay the fu*k down
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ancient chineese proverb:
"I'm not as think as you drunk I am"
Post by: monstercrank on March 28, 2006, 01:53:01 PM
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Go MaxBob, Chris Barnes, Tommy Jones, Patric Allen, and Jason Couch!!!!!
--------------------------------------------
bowling is my way of telling pins some times they just need to lay the fu*k down
------------------------------------
ancient chineese proverb:
"I'm not as think as you drunk I am"
Post by: Roy Munson on March 28, 2006, 01:57:36 PM
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I Saw You !
-Noel
Post by: scottie on March 28, 2006, 02:50:48 PM
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Scottish by birth, British by law, Highlander by the grace of God!
Post by: Roy Munson on March 28, 2006, 04:36:42 PM
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I Saw You !
-Noel
Post by: scottie on March 28, 2006, 04:47:35 PM
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Scottish by birth, British by law, Highlander by the grace of God!
Post by: Roy Munson on March 28, 2006, 05:14:12 PM
"I hate people who give advice thats wrong."
read again - guess and not a driller
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I Saw You !
-Noel
Post by: monstercrank on March 28, 2006, 06:06:35 PM
Post by: Roy Munson on March 28, 2006, 07:21:55 PM
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I Saw You !
-Noel
Post by: Carolina Kingpin on March 28, 2006, 07:30:29 PM
Actually, the placement of the cg matters more on a symmetrical ball than it does on an asymmetrical ball. On a symmetrical ball, the cg affects where the second preferred spin axis is located, unlike on asym's, where the second PSA is determined primarily by the core.
Also, the ratio of the topweight to the weight of the ball is not a very useful way to characterize the potential effect of the cg. What matters is how much leverage is produced by the cg. Leverage is a function of the mass on the end of the lever--the topweight--and the length of the lever. One ounce on a 15lb. ball with a low average rg will have more of an effect than one ounce on a high rg ball. So, it matters how the 15lbs. are distributed relative to the center of the ball.
From the Ebonite website:
"The minimal effects of static weights stem from their limited leverage. One ounce of static weight equals 1/64th of an inch from the geometric center of the ball. The furthest that the center of gravity can be from the center of the ball at maximum ABC limits is 3/64th of an inch.
Now compare this to the radius of gyration limits. On the low side of ABC limits is 2.43. This means that the mass displacement is 2.43 inches from the geometric center of the ball. The upper limit is 2.80 inches. Sounds to me like a bigger lever arm compared to 3/64th of an inch. You can alter your ball motion much greater by changing RG's than static weights."
Notice that the word "minimal" is used--not zero.
To answer the original question, the effect (though small) of swinging the cg counter-clockwise from the pin, all else equal, is to make the ball rev sooner/ use its energy faster. A common way of describing the effect is to increase midlane read. Whether or not this results in more overall hook depends on the lane condition. If the pattern is long, for example, earlier revs could increase hook by keeping the ball from sliding past the breakpoint. On the other hand, if the pattern is short, then earlier revs could cause the ball to burn up, decreasing hook.
In any case, the effect of the cg is minimal and not nearly as important as placement of the pin.
CK
Post by: Carolina Kingpin on March 28, 2006, 07:54:48 PM
Edited on 3/28/2006 8:55 PM
Post by: MegaMav on March 28, 2006, 09:05:25 PM
and for everyone that wants to see the brunswick video who hasnt...
here it is...
http://www.brunswickbowling.com/uploads/vids/CG_demo_5-05.wmv
Eric
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USBC Certified Bowler
Average: 211
See Profile For Arsenal Details
Post by: monstercrank on March 29, 2006, 09:46:42 AM
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Go MaxBob, Chris Barnes, Tommy Jones, Patric Allen, and Jason Couch!!!!!
--------------------------------------------
bowling is my way of telling pins some times they just need to lay the fu*k down
------------------------------------
ancient chineese proverb:
"I'm not as think as you drunk I am"
Post by: Cranking_Inferno on March 29, 2006, 10:26:25 AM
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Arsenal:
EPX-T1 - Flooded oil
Action - Heavy oil
Inferno - Heavy to Medium oil
Action Packed - Medium oil
Smoking Inferno - Medium to dry
Blue Dot - Spare ball
Post by: scottie on March 29, 2006, 10:40:33 AM
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Scottish by birth, British by law, Highlander by the grace of God!
Post by: monstercrank on March 29, 2006, 06:16:45 PM
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Go MaxBob, Chris Barnes, Tommy Jones, Patric Allen, and Jason Couch!!!!!
--------------------------------------------
bowling is my way of telling pins some times they just need to lay the fu*k down
------------------------------------
ancient chineese proverb:
"I'm not as think as you drunk I am"
Post by: GTX on March 29, 2006, 08:50:54 PM
give me a clean backend with an outside dry boards ( like the brunswick video ) and these CG-in, CG-stacked and CG-out will look the same
a true test would be on variety of lane conditions and that were the difference would show
I totally agree with what some said, CG kicked out will cause an early roll + even arc where stacked will give more length and stronger arc / flip at the end.
and i don't need to watch a video to know all that ..
very funny when a friend of mine had the Solid Uranium drilled 1:30 label, the ball was dead for him .. I told him to plug it and go with stacked drilling and the ball is rolling totally different ... I guess yeah, CG position did not make a difference at all.
P.S. I wonder why the Big B used "one" "unknown" ball with few frames in their video ... why not use some of the latest balls and different lanes conditions
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Member of F.O.S. Super Carbide Bomb (x3) Solid Uranium (x2) Hybrid Dirty Bomb Uranium H2O Tsunami Black Cherry Bomb Enriched Uranium x2 Dirty BombBOMB SQUAD ... Searching for pins to destroy
Post by: GTX on March 30, 2006, 02:49:58 AM
I owe you an apology, I thought you were smart enough since you started math and physics ... but I was wrong
my one example was the "contradiction" of your theory "if you have one actually" ... and I am not gonna waste my time to explain what is "contradiction" to you
so what's next, 1" pin is the same as 4" pin lol
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Member of F.O.S. Super Carbide Bomb (x3) Solid Uranium (x2) Hybrid Dirty Bomb Uranium H2O Tsunami Black Cherry Bomb Enriched Uranium x2 Dirty BombBOMB SQUAD ... Searching for pins to destroy
Post by: charlest on March 30, 2006, 04:35:01 AM
quote:
2 words: Brunswick throwbot.
If you remember the Brunswick Throbot was also used in the late 1990s to prove that mass bias/PSA cored balls did not provide any difference from non-mass bias/symmetric cores. Now, guess what? Brunswick uses PSA/mass bias balls.
Do we see a pattern here?
Sounds like the numbers game: they can show anything you want to show, whether it's true or not.
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"None are so blind as those who will not see."
(That includes me too, at times!
)Post by: monstercrank on March 30, 2006, 04:48:03 AM
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Go MaxBob, Chris Barnes, Tommy Jones, Patric Allen, and Jason Couch!!!!!
--------------------------------------------
bowling is my way of telling pins some times they just need to lay the fu*k down
------------------------------------
ancient chineese proverb:
"I'm not as think as you drunk I am"
Post by: GTX on March 30, 2006, 12:14:08 PM
http://www.ballreviews.com/Forum/Replies.asp?TopicID=120509&ForumID=7&CategoryID=2
glad to see some of the points I mentioned, got mentioned there as well
needless to say I have balls drilled with CG-in, stacked and CG-out and I get different reactions
to me, with the above link .. no point to argue something proven pointless
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Member of F.O.S. Super Carbide Bomb (x3) Solid Uranium (x2) Hybrid Dirty Bomb Uranium H2O Tsunami Black Cherry Bomb Enriched Uranium x2 Dirty BombBOMB SQUAD ... Searching for pins to destroy