My animal revs up fast.  Is the cover more responsible for this or the core?  I know I can't go by RG because the animal has an Rg of 2.53 and this ball revs up faster than any other ball I have.  I always thought Rg was the strong indicator of how fast a ball revs up.  Or is the Animal just an exception to this because of the strong cover?  

I'm trying to find a reactive ball that will act similar tothe animal.  I'm looking for a reactive ball to rev very fast like the animal does for me.  I have an arsenal reactive coming and this maybe it.
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I feel that it is a combination of both.

You have to remember that RG is a static measurement and it does not take core shape into account.
For instance you could have 2 balls with identical RG numbers but one of them has short and fat core while the other has tall and skinny core.
The short/fat cored ball will rev up much earlier than the tall/skinny cored ball.
I used to pay more attention to the numbers but now I also take into account the shape (height/width) of the core.
Basically if you take a tall/skinny cored ball and drill it with the pin close to PAP you affectively turn it into a short/fat cored ball and vise versa.

Think of it like a figure skater when they do a spin they rotate rather slowly when their arms are spread because the have more mass that is farther from and perpindicular to the spin axis but when they pull their arms in they spin faster and smoother because more of their mass is centered and parallel to the spin axis. To add to that further, if the skater were to raise their hands over their head they would spin even faster because they would bring their mass closer to the centerline of the axis, this is strictly a matter of centrifigal force and leverage.


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Hey chi,

Storm Track gives a great explanation because there are patterns that are considered low rg drills.  I've done this personally and can change a reaction or as to how fast a block will spin when placed closer to pap.  I'd say it's definitely a combination of both for you as the cover will dictate the amount of friction created.  

At the Track seminar with Brian that I attended a while back, he stated to me that our rev rate (on C.A.T.S.) changes to the amount of oil that is present on the lanes.  If the oil is longer/heavier, our ball actually revs less due to the lack of friction.  Once it can create the proper amount of friction, the weightblock can pull up and rev faster which is where we learned in the past about a ball accelerating on the backend.
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Rick Leong - Ten Pins Pro Shop
Track Intl. - Amateur/Pro Shop Staff  
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You got to keep in kind what happenms on the lane: the coverstock makes contact with the lane, therefore friction and traction are its influence.
The core and the RG tell you, how easy it is to rev a ball up - but also how easy it loses energy imparted by your release.

The drilling will also have an influence on when the ball delivers its energy down the lane.

Therefore, both components influence ball reaction. But it is mainly the coverstock and its preparation which dictates what the ball does. With polish you should be able to save more energy in the core for a later delivery.

If this does not help the coverstock might simply be too agressive for the lane, or there is (from another angle) not enough oil for the ball.
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