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Author Topic: low rg and high diff question...  (Read 60086 times)

lefty50

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low rg and high diff question...
« on: July 07, 2015, 06:38:18 PM »
current specs.. Left hand, 250 rev, 16.5 off the hand, high axis rotation.

the following is primarily, but not totally, a med-hvy oil and up scenario question.

Several years ago I was told by members on this forum whom I trust that with my style of bowling (low rev, high rotation), I would always want a low RG high differential ball. That did and still does make sense to me since my favorite ball at the time was a storm Special Agent. I've always done well with high diff symmetrical balls, which makes sense. Any ball with a high RG lopes down the lane too long and never gets into a roll. Low differential ball are pretty much the same.

It seems to me that these days the vast majority of balls are higher RG and lower differential, but yet they are advertised as big hook balls, which flies in the face of what my style encounters in real life. The answer is either that they are no longer making the type of ball I prefer (few exceptions) or that the cover stock is so dramatically different that I no longer have the low RG high differential qualification requirement.

I should add that I have had nothing but trouble with asymmetric and will only buy symmetric from now on. I know that there are few balls out there like the Motiv Covert Revolt, but there are many others I would like to try based on their rating to give me some help in the rev department, but I just can't see a .047 or so low rg ball revving enough for me.

Which is true?
Thanks in advance

 

kidlost2000

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Re: low rg and high diff question...
« Reply #76 on: July 20, 2015, 01:07:21 PM »
On a side note,  Tommy are you the guy who was on here complaining a while back about the different core specs between 15 and 14 lbs bowling balls?  Where the 15 may have a rg of 2.54 and the 14 being 2.57 and how you couldn't use a ball at 2.57 and was upset because the 15 had the desired rg?  It was in reference to a storm ball and I was just curious.
…… you can't  add a physics term to a bowling term and expect it to mean something.

tommygn

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Re: low rg and high diff question...
« Reply #77 on: July 20, 2015, 01:09:09 PM »
The HyRoad is also a new one, not a 6 year old ball.

This seems to likely be the culprit.

How so do you mean? Other than color, it's basically the same cover(other than maybe slight percentages in solid to pearl ratio when the cover was poured). Notice I said, it's a new HyRoad, just like a new Rocket.

Old HyRoads are different than new Hyroads.

 New HyRoads us current materials, just as the Rocket would.
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JustRico

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Re: low rg and high diff question...
« Reply #78 on: July 20, 2015, 01:23:01 PM »
So I understand correctly, your assessment is that 3/1000" is the difference between a strike and a 2-8-10?
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tommygn

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Re: low rg and high diff question...
« Reply #79 on: July 20, 2015, 01:23:14 PM »
On a side note,  Tommy are you the guy who was on here complaining a while back about the different core specs between 15 and 14 lbs bowling balls?  Where the 15 may have a rg of 2.54 and the 14 being 2.57 and how you couldn't use a ball at 2.57 and was upset because the 15 had the desired rg?  It was in reference to a storm ball and I was just curious.


Not sure what you are talking about.

I believe in using high Rg low flare balls with weaker layouts and covers; and smooth surface for drier conditions, and low Rg balls with high differential with strong drillings and covers; and more surface for oil. Medium falls right in between. Really simple. Interestingly enough, that is how most companies design their equipment. I wonder why?
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tommygn

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Re: low rg and high diff question...
« Reply #80 on: July 20, 2015, 01:25:42 PM »
So I understand correctly, your assessment is that 3/1000" is the difference between a strike and a 2-8-10?

Doubt it. I think 1/32" or .032, which is 3/100 of an inch at the pin deck could be enough  change in angle to not ring a corner or be enough to touch the 3 pin for lefties or 2 pin for righties. It's all about the defection, and angle.

« Last Edit: July 20, 2015, 01:55:01 PM by tommygn »
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JustRico

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Re: low rg and high diff question...
« Reply #81 on: July 20, 2015, 01:28:41 PM »
You said that in your explanation of the differences between the HyRoad and SkyRocket no?

I'm sorry but if when it's all said and done, your final assessment of why one didn't strike over another is that minuscule of a mass...and nothing else...interesting
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tommygn

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Re: low rg and high diff question...
« Reply #82 on: July 20, 2015, 01:31:54 PM »
You said that in your explanation of the differences between the HyRoad and SkyRocket no?

I'm sorry but if when it's all said and done, your final assessment of why one didn't strike over another is that minuscule of a mass...and nothing else...interesting

Do you know the difference between .03, and .003?
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kidlost2000

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Re: low rg and high diff question...
« Reply #83 on: July 20, 2015, 01:33:26 PM »
On a side note,  Tommy are you the guy who was on here complaining a while back about the different core specs between 15 and 14 lbs bowling balls?  Where the 15 may have a rg of 2.54 and the 14 being 2.57 and how you couldn't use a ball at 2.57 and was upset because the 15 had the desired rg?  It was in reference to a storm ball and I was just curious.


Not sure what you are talking about.

I believe in using high Rg low flare balls with weaker layouts and covers; and smooth surface for drier conditions, and low Rg balls with high differential with strong drillings and covers; and more surface for oil. Medium falls right in between. Really simple. Interestingly enough, that is how most companies design their equipment. I wonder why?

Some guy was on here complaing he couldn't throw a new storm ball because in 14lbs the rg was 2.57 and balls with rg that high rolled bad for him,  but in 15lbs the ball had a rg of 2.54 and that rg he could throw.

Was just curious.

3/100" we should factor in the ball logos that are engraved vs the ones that aren't. That may be the bigger factor
…… you can't  add a physics term to a bowling term and expect it to mean something.

tommygn

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Re: low rg and high diff question...
« Reply #84 on: July 20, 2015, 01:36:02 PM »
If I shift the pin placement 1/2" over and a 1/2" up, from the center of my grip, is it still a Rico layout?
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JustRico

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Re: low rg and high diff question...
« Reply #85 on: July 20, 2015, 01:41:01 PM »
There are no layouts merely flare management
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tommygn

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Re: low rg and high diff question...
« Reply #86 on: July 20, 2015, 01:49:32 PM »
There are no layouts merely flare management

Good one!!
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MI 2 AZ

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Re: low rg and high diff question...
« Reply #87 on: July 20, 2015, 02:15:58 PM »
I just find it so fascinating how some posters keep reading three one-hundredths as three one-thousandths.

:)

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JustRico

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Re: low rg and high diff question...
« Reply #88 on: July 20, 2015, 02:24:24 PM »
In ball reaction or motion and humans it doesn't matter
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BradleyInIrving

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Re: low rg and high diff question...
« Reply #89 on: July 20, 2015, 02:53:08 PM »
Tommy,   I assumed from what I posted and what you read you'd apply that SURFACE being the main culprit as ballreaction when I had said about drilling a ball anyway you want to.... 

You really need to get w/ the Phoenix Ball Balancing guy if this is how you perceive all the guys here giving their input and nobody is right here.. 

Ric Hamlin may come across arrogant, but really is it all that hard to comprehend what he's saying? There are #'s to back up what he's saying and he's been in the business quite awhile.. 

Say what you will, I'll trust Ric's input over anyone else's here (keep an open mind that's how you learn cgnomaddah)..

tommygn

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Re: low rg and high diff question...
« Reply #90 on: July 20, 2015, 03:09:21 PM »
No where,  anywhere did I disagree that surface is the primary factor in ball motion. I know that,  I agree with that.  I'm just adding that the core plays apart in the equation, and the core is definable with numerical values, and those numerical values are Rg, differential and intermediate differential. If you think that has absolutely nothing to do with ball motion, feel free to believe that. I disagree.  Ric ' s argument with me is that differential only matters, BUT and you can't have one without the other. No difference in Rg plains, then no difference in differential. The Rg don't matter is contradicting.
God creates us with a blank canvas, and the "picture" we paint is up to us. Paint a picture you like and love!