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Author Topic: Double thumb on a symettrical ball?  (Read 4659 times)

NJStroker

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Double thumb on a symettrical ball?
« on: February 19, 2009, 05:57:50 AM »
just wondering if it works or not? was thinking of putting it on a venus but wasnt sure how well it would work on a symetrical cored ball. thanks for the help.
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Im so glad people are brainwashed to think that TRACK sucks. And its even funnier when im carrying with my TRACK ball and they''re going flat ten with their OTHER BRANDS ball.
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Dan Belcher

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Re: Double thumb on a symettrical ball?
« Reply #1 on: February 19, 2009, 02:04:21 PM »
It works just fine.  My dad has a double-thumb layout on his Hy-Road -- it gives him a very strong, very continuous motion downlane.
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230-n-up-or-bust

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Re: Double thumb on a symettrical ball?
« Reply #2 on: February 19, 2009, 02:06:50 PM »
Got one on my Solaris.  Works fine.  When putting together a drilling startegy with a double thumb drilling, be certain that there's proper top weight on the ball to start.  Drilling that 3" hole will remove a lot of weight and if you're starting on a ball with in the neighborhood of two ounces or less, you may have some static weight issues with the completed drilling.
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Edited on 2/19/2009 3:07 PM
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NJStroker

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Re: Double thumb on a symettrical ball?
« Reply #3 on: February 19, 2009, 02:11:40 PM »
o man that sounds EXACTLY what i want. i want the venus to be used for some carrydown, and since its particle pearl i thought that would help but i wanted to drill it more aggressive and this sounds just like the ticket.
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Im so glad people are brainwashed to think that TRACK sucks. And its even funnier when im carrying with my TRACK ball and they're going flat ten with their OTHER BRANDS ball.
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NJStroker

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Re: Double thumb on a symettrical ball?
« Reply #4 on: February 25, 2009, 01:08:28 PM »
another q, would this ball be the ticket for this or would you guys suggest something else. Low revs, slow speed around 14 mph and like 200 rpms probably looking for a carrydown ball basically. not a TON of carrydown but a moderate amount.
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Im so glad people are brainwashed to think that TRACK sucks. And its even funnier when im carrying with my TRACK ball and they're going flat ten with their OTHER BRANDS ball.
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J_w73

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Re: Double thumb on a symettrical ball?
« Reply #5 on: February 25, 2009, 01:21:53 PM »
Just make sure the pin is 6 3/4 for the thumbhole and the weight hole.
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16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 782
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NoseofRI

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Re: Double thumb on a symettrical ball?
« Reply #6 on: February 25, 2009, 01:27:22 PM »
quote:
It works just fine.  My dad has a double-thumb layout on his Hy-Road -- it gives him a very strong, very continuous motion downlane.


Is this reaction caused by the dual-thumb drilling or the ACTUAL reaction of the Hy-Road, because that's exactly what a Hy-Road is designed to do anyways.
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J_w73

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Re: Double thumb on a symettrical ball?
« Reply #7 on: February 25, 2009, 01:34:34 PM »
quote:
quote:
Just make sure the pin is 6 3/4 for the thumbhole and the weight hole.
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16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 782
Book Average 215 / 205,PBA Xperience ave180



i have alot of knowledge about drilling bowling balls, can you explain this comment plz...


This will put the thumb hole and the weight hole right in the side of the core and enhance the dynamics of the ball... I know dynamics can mean alot of things based on what you believe weight holes do..
it should increase rg diff, increase flare, increase hook..
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16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 782
Book Average 215 / 205,PBA Xperience ave180

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Dan Belcher

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Re: Double thumb on a symettrical ball?
« Reply #8 on: February 25, 2009, 01:35:49 PM »
quote:
quote:
It works just fine.  My dad has a double-thumb layout on his Hy-Road -- it gives him a very strong, very continuous motion downlane.


Is this reaction caused by the dual-thumb drilling or the ACTUAL reaction of the Hy-Road, because that's exactly what a Hy-Road is designed to do anyways.
...it's both.  Layout and ball are not independent of the other.  Its reaction matches what I'd expect from that layout compared to other Hy-Roads I've seen with weaker layouts that go longer and are more angular than my dad's.
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Dave_in_Rio_Rancho

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Re: Double thumb on a symettrical ball?
« Reply #9 on: February 25, 2009, 01:36:12 PM »
It works well on my Storm Surefire which is about as symmetrical as you can get It plays to the strengths of the strong roll core. I "almost" never leave artwork with this combination - leave a stone 8 or 9 pin once in awhile.
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J_w73

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Re: Double thumb on a symettrical ball?
« Reply #10 on: February 25, 2009, 01:45:14 PM »
check it out on morich.com

http://www.morichbowling.com/MosCorner/DoubleThumbDrilling/DoubleThumbDrilling.htm

it is normally done with an asymetrical ball.. mb is 6 3/4 from the pin and you put the mb next to the thumbhole.. the thumbhole and weight hole basically enhance the dynamics of the core.
the pin is also in a pretty strong high flaring position
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16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 782
Book Average 215 / 205,PBA Xperience ave180



Edited on 2/25/2009 2:46 PM
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J_w73

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Re: Double thumb on a symettrical ball?
« Reply #11 on: February 25, 2009, 02:09:47 PM »
quote:
ok, thx....i drilled a storm dimension with a different version of this layout...ball had 3 inch pin, i placed pin on grip line under bridge and mb was in track...it was about 5 x 6 3/4...cg was almost in thumbhole...i placed wt hole 1 inch rt of thumbhole and have the smoothest ball ive ever thrown., gets through the heads like plastic and hits like resin...i can play right on our drier THS....dont know if it was layout or ball or wt hole but im going to drill another ball like this to see if i can get similar reaction..because i love it...


All of the holes are actually doing the opposite.. they are taking weight out of the top of the core making it shorter and lowering the rg and the rg differential.. that with the mb in a very weak postition is giving you that smooth ball.. that ball should do exactly what you put into it with your hand..
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16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 782
Book Average 215 / 205,PBA Xperience ave180

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NJStroker

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Re: Double thumb on a symettrical ball?
« Reply #12 on: February 25, 2009, 06:54:47 PM »
its fine cg, anyone have any idea what ball would be better to put this on? or any other ideas for drills for this condition or different balls or is this drilling and ball right?
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Im so glad people are brainwashed to think that TRACK sucks. And its even funnier when im carrying with my TRACK ball and they're going flat ten with their OTHER BRANDS ball.
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JohnP

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Re: Double thumb on a symettrical ball?
« Reply #13 on: February 27, 2009, 07:19:55 PM »
quote:
All of the holes are actually doing the opposite.. they are taking weight out of the top of the core making it shorter and lowering the rg and the rg differential.. that with the mb in a very weak postition is giving you that smooth ball.. that ball should do exactly what you put into it with your hand..


The pin marks the top of the core, right?  So holes 6 3/4" from the pin will take weight out of the middle of the core, not the top.  --  JohnP
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J_w73

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Re: Double thumb on a symettrical ball?
« Reply #14 on: February 27, 2009, 08:23:04 PM »
quote:
quote:
All of the holes are actually doing the opposite.. they are taking weight out of the top of the core making it shorter and lowering the rg and the rg differential.. that with the mb in a very weak postition is giving you that smooth ball.. that ball should do exactly what you put into it with your hand..


The pin marks the top of the core, right?  So holes 6 3/4" from the pin will take weight out of the middle of the core, not the top.  --  JohnP


the quote you quoted was in reference to a pin down ball(modified rico sorta).. in this case the holes do take weight out of the top of the core..
but yes.. holes 6 3/4 from the pin will take weight out of the middle/side of the core..
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16-17 mph,350 rpm,PAP 5 1/2 x 3/8up, HighGame 300 x 3, High Series 782
Book Average 215 / 205,PBA Xperience ave180

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