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Author Topic: RG'S...Which one is better for you?  (Read 3834 times)

tenpinspro

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RG'S...Which one is better for you?
« on: December 03, 2006, 02:01:47 AM »
Do any of you notice that some balls seem to rev faster then other balls in your arsenal?  Your eyes are not playing tricks on you, most likely it is.  The faster revving ball(s) are most likely also your lower “rg” (radius of gyration) ball(s).  Balls that have a lower rg spin faster compared to balls that have higher rg’s (given that the weight blocks are placed in the same position for the same bowler).  

This effect not only helps us play a shot correctly, it also dictates “how” we end up playing that shot.  Theoretically, a faster spinning object adheres to the surface faster and better compared to a slower spinning one.  It is similar to the concept of accelerating at the apex of a turn in our car.  Since we all can’t be crankers, manufacturers have designed balls for us that spin faster to help in that area.

Based on this explanation, if you are more of a down and in player, you may want balls that have higher rg’s so the ball will lope down the lane and turn over and not roll too early for you.  Conversely, if you like to swing the ball, lower rg equipment helps us do that.

Here is a chart for you guys to analyze and compare your own equipment to.  If you have certain pieces in your arsenal or balls that you’ve liked, double check the rg’s on the piece and the layout and you may see a pattern.  There are also ways to drill a ball that also makes it rev faster so that’s why we need to check the ball and layout.

Rg Value   Rg Rating   Typical Reaction*   
2.43-2.48   Very low   Very early and arcing break point   
2.49-2.51   Low   Early and strong arcing break point   
2.52-2.54   Medium-low   Medium length with snapping break point   
2.55-2.58   Medium   Gets down the lane easily with snapping backend reaction   
2.59-2.66   Medium-high    Late break point with sharp or arcing break point depending on carrydown   
2.67-2.80   High   Extremely late break point   

*Chart compliments of Mr. Danny Speranza (another great mind), Columbia Industries

Thought this info may help some of you in choosing the right piece.  Good luck and good bowling....just another piece from your Tag Team Coaching combo (Rick Leong and Carl Hurd)

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tenpinspro

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Re: RG'S...Which one is better for you?
« Reply #16 on: December 07, 2006, 03:15:10 PM »
quote:
I still think looking solely at the RG takes your eye off the true target: designed-in ball reaction and the ball's prime intended use.


Yes Charlest, I agree with you.  My main point in this post was to help bowlers be more aware of this part of the "designed-in ball reaction" because it can change the reaction shape.

Not sure if you or Re-Evolution ever tried a Revmaster(2.46 and .059 diff with just Power Plus on the cover) but for the life of me, I could not get this ball long enough. Had a generic drill of pin over ring and cg out right slightly but this ball checked up literally on anything short of med/heavy and down.  Could have been the higher differential as well (that's my next post) but couldn't tell you for sure.  All I know is that with this combo, I definitely could not play a down and in shot with the ball and that layout.

I'm just trying to help our bowlers here in understanding one of the main components that play part or attribute to a ball's "built in design or intended use".  A high majority of my customers who come in for the first time literally have no clue when looking at a ball talker as to what these numbers mean or do (until I explain it).  It's meaningless to them.  You don't count, you know too much..

Thanks for helping clarify....
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charlest

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Re: RG'S...Which one is better for you?
« Reply #17 on: December 14, 2006, 04:22:07 AM »
OK, put like that, I see your point.

The Artillery was/is simialr to the Revmaster in that sense. I read the TWO reviews of it recently in BJI, made by Joe Cerrar. The first reviews had longer pins of 4 1/2" but the reviews came out slightly negative. Del saw that, contacted Joe, explained about putting the pin above the bridge area and sent him more balls to test. Even the high speed bowler originaly needed a high pin to get a good reaction from the Artillery, whose specs made me afraid to even think about that ball. Once the balls had the high pins, they got bette rball reactions overall.

I think the Artillery had a core similar to the Revmaster. That was also one reason (super low RG) I was afraid of trying the FAZ. The too strong cover plus that core made me wonder where the heck I'd ever use it.

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Rock77

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Re: RG'S...Which one is better for you?
« Reply #18 on: December 19, 2006, 10:31:36 AM »
So, based on this chart, if I want a ball to serve as a control/benchmark piece and I want an arcing breakpoint, I should look for balls that have an rg in the 2.43-2.48 range, right? Maybe venture into the 2.49-2.51 area?
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tenpinspro

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Re: RG'S...Which one is better for you?
« Reply #19 on: December 19, 2006, 03:44:37 PM »
quote:
So, based on this chart, if I want a ball to serve as a control/benchmark piece and I want an arcing breakpoint, I should look for balls that have an rg in the 2.43-2.48 range, right? Maybe venture into the 2.49-2.51 area?


Yes and no Rockster, as Charlest/Sean have pointed out, covers also play a huge part in ball reaction as we know.  We have to look at cover strength and combine that with the rg design.  Now with that said, 2 balls approximately with the same cover and differential, the ball with the lower rg will spin faster and should give us a more arcing reaction vs length and flip.

Take our Equation for example, OOB it has nice length and a strong backend reaction but that is mainly due to the 3000 grit polish.  If we bring that cover down to 600-800 polish or 1000 flat, the ball would be much smoother and will most likely not have the same reaction shape that it comes with OOB.

Just double check what the cover is to the rg and we can get the reaction shapes we are looking for.  Overall or generally speaking, my definition holds true or manufacturers would not be designing or listing this as pertinent information.

Charlest probably said it best one time by saying that these days we buy reaction.  I'm taking it one step further by defining it to a particular "reaction" shape....
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Buckwild

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Re: RG'S...Which one is better for you?
« Reply #20 on: March 05, 2007, 09:20:05 AM »
ttt
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dw23

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Re: RG'S...Which one is better for you?
« Reply #21 on: March 05, 2007, 09:33:44 AM »
I like 2.42 to 2.54. I get good revs on the ball and my track and tilt cause to many wrap tens and solid nines with balls that flip hard. Hard arc also keeps me in control of my breakpoint without loosing much hitting power.

Thanks,
DW
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shelley

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Re: RG'S...Which one is better for you?
« Reply #22 on: March 05, 2007, 10:32:28 AM »
My limited experience with higher-RG balls left a bad taste in my mouth.  I had a black Power Groove in 14# that, like Rick said, kinda loped down the lane.  Never really revved up well for me.  I'm a little speed dominant and don't have a lot of hand so that may have contributed to it.  My newer stuff is more low and medium-low RG (2.5-ish) and I get a much more consistent reaction out of it.  I am kind of a down-and-in player.

Admittedly, I throw the ball a lot better now than when I was throwing the PG, but I can't say I'd get another one by choice.  As appealing as the Lanemasters/Legends equipment is, the higher RGs has me a little scared to drop $200+ on a ball I might not like.  If I did that and decided it wasn't for me, I'd never hear the end of it from the missus.

SH
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CharlieBrown

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Re: RG'S...Which one is better for you?
« Reply #23 on: March 05, 2007, 10:36:55 AM »
quote:
As appealing as the Lanemasters/Legends equipment is, the higher RGs has me a little scared to drop $200+ on a ball I might not like.


Interesting, me too!

My driller has been singing praises on this brand for a while, but I'm not convinced the high RG would be a good matchup to my style.
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cficare068

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Re: RG'S...Which one is better for you?
« Reply #24 on: March 05, 2007, 02:09:27 PM »
Low rg balls tend to work but for me then the higher ones
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Leftyhi-trak

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Re: RG'S...Which one is better for you?
« Reply #25 on: March 05, 2007, 04:05:17 PM »
Although having a very high track i tend to prefer real low RG's like the V2s from Ebonite and the Inferno's from Brunswick. Always felt they gave me a truer read on pattern. I hate loping equipment as its tends to be very spotty for carry for me. My lauch angles tend to be of the straighter variety so the low RG's still worked ok with proper surface.
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