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Author Topic: Drill suggestion for Yeti with short pin  (Read 6181 times)

jpierc25

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Drill suggestion for Yeti with short pin
« on: December 20, 2013, 01:14:58 PM »
I just bought a Yeti with a pretty short pin length (about 1-1/2") and I was just wondering if anybody has something similar or if anybody can recommend a good drilling for this pin layout.
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kidlost2000

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Re: Drill suggestion for Yeti with short pin
« Reply #16 on: December 29, 2013, 04:58:34 PM »
Give a ball 3-5ozs side weight and let us know if your opinion changes.
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…… you can't  add a physics term to a bowling term and expect it to mean something.

Impending Doom

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Re: Drill suggestion for Yeti with short pin
« Reply #17 on: December 29, 2013, 05:37:45 PM »
A 15 lb ball is 240 oz. I honestly don't see how 1 to 2% of that matters any more.
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kidlost2000

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Re: Drill suggestion for Yeti with short pin
« Reply #18 on: December 29, 2013, 06:00:27 PM »
After playing with bp software it shows a significant and undesireable affect. USBC has done studies with Mo that show as you approach those numbers it does affect the ball motion.

My question is does the usbc rule actually affect you? Who and how often is the static weight of your bowling ball checked? Honor scores? Nope. Local tournaments? Nope USBC Nationals? Yes

So you like many others can be very illegal in static weights and never be affected. See problem solved.
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mattypizon

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Re: Drill suggestion for Yeti with short pin
« Reply #19 on: December 29, 2013, 06:52:26 PM »
Is there a difference in final numbers post drill between drilling the fingers deeper vs a P1?
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LuckyLefty

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Re: Drill suggestion for Yeti with short pin
« Reply #20 on: December 29, 2013, 07:39:42 PM »
 couple of thoughts.

For Kidlost.  I don't drill for profit but for fun.  Typically thumbholes to 2 1/2 inch and fingers to 1 1/2.

Of course all discussion regarding drilling fingerholes deeper was regarding the above discussion of short pin outs and with the pin up and the cg near the fingerholes.  Of course the necessity of doing it was the reason why discussed.

I guess the link that you took me too was how to drill a double thumb  weighthole if the ball was not set up for thumbweight(ie cg down).  I get it....drill the fingers deeper, create thumb weight.  Voila Double Thumb or P3 weight hole.

The other question to Impending Doom. 

Have you tried balls with dramatic side weight say 2 ounces on a wet dry before the weight hole?  It is quite revealing how much recovery there is off the dry and how much skid there is when the ball is pulled in the oil?  That is why many drillers will keep drilling to even negative on these situations to reduce the over under.

Regards,

Luckylefty
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JustRico

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Re: Drill suggestion for Yeti with short pin
« Reply #21 on: December 29, 2013, 07:47:34 PM »
To a extent you guys are arguing semantics...unless you do a true controlled test it's all conjecture...there are too many variables when making certain statements as well as gauging ball motion by an individuals perception of motion.
When I was still drilling professionally I drilled thumb holes 2.5-2.75" deep and fingers 2-2.25" deep, by the way.
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kidlost2000

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Re: Drill suggestion for Yeti with short pin
« Reply #22 on: December 29, 2013, 07:55:16 PM »
I drill for me not for others.

The title the effect of drilling finger holes deeper says a lot.

Look at the numbers on the core prior to drilling an x-hole and the difference in finger hole depths. That is the information most benefical to the question you asked. It is discussed else where as well that once you go beyond 2-2.25" on finger depth the numbers begin to lower the diff and raise the RG. It may reduce the desired results one original wanted.
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…… you can't  add a physics term to a bowling term and expect it to mean something.

LuckyLefty

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Re: Drill suggestion for Yeti with short pin
« Reply #23 on: December 30, 2013, 08:20:57 AM »
Really, I am trying to learn, so much good information out here!

Just my note on drilling is only related to the fact that I understand the most basic of cg location starting top weight relationships.  With my size fingers thumb and inserts my depth of holes seems to leave finger thumb the same as the cg location expectation.  I will double check that soon due to a switch to urethane slugs for my thumb.

The information on hole depths link was helpful!  Also, Kidlost further posts or discussion of these items referenced or linked would be very helpful.

I do see the subject of this post relates to "Drill suggestion for Yeti with Short Pin".
but it has recently morphed "Short pin  CG up drillings".  Right now I have a few 2 inch pin out NIB balls I want to pin up(for my local shot) and was wondering about all of this.

For both Kidlost and JustRico.  Kidlost has referred to weighthole quadrant references by JustRico.  I would love to see a link to that post.

Thanks,

Luckylefty
PS just yesterday I set up a cg up one inch cg out 1 1/2 inch pin way up Freeze starting top weight 2.75.  I love the reaction, illegal now and cg location is pointing to a 1 1/2 inch up from PAP weighthole.  I want to see retention of current reaction to slightly faster rev up.  Ideas?
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JustRico

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Re: Drill suggestion for Yeti with short pin
« Reply #24 on: December 30, 2013, 09:20:35 AM »
Lucky this is my point, you are basing your views off a single instance and your viewpoint only, you can't do this. Making the comment of seeing a greater retention could very well be a brand new bowling ball, this less wear or burn on the cover.
If you have shorter pin to CG balls, instead of distorting the core my drilling the holes deeper, merely move the pin 1/4" farther from pap and place the pin under or simply drill the pin out.
Keep in mind, there are no absolutes in drilling, we know the probabilities of safe layouts. Everything is going to be first & foremost surface and where & how the ball slows down...and understand, being left handed the surface or topography of the lane is different than on the right side...thus creating an illusionary ball motion in comparison to the right side.
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LuckyLefty

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Re: Drill suggestion for Yeti with short pin
« Reply #25 on: December 30, 2013, 10:48:52 AM »
Illusionary reaction?  I don't comprehend?

More oil, less surface/lane topography roughness I do understand.  Different for same drilling on right with a mirror bowler of myself, I do understand also.

4 3/4 pin to pap, up enough that the pin buffer is 1.5 up over an inch higher than ring.  Would that be the same as say 5 inch pin to pap under ring using the 1/4 inch rule?

Regards,

Luckylefty
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It takes Courage to have Faith, and Faith to have Courage.

James M. McCurley, New Orleans, Louisiana

JustRico

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Re: Drill suggestion for Yeti with short pin
« Reply #26 on: December 30, 2013, 10:53:17 AM »
Illusionary reaction is what you think you are seeing...in most ball motion the minds eye perceive motion created by lighting or color of the bowling ball or even side to side friction.
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