BallReviews
General Category => Drilling & Layouts => Topic started by: mfhames on February 20, 2013, 12:41:24 AM
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Hello;
I have a bowler I drilled a Victory Road Solid. Pin Down, 4x4, ½ oz. positive side ½ oz. thumb weight. He says the ball hooks too much and too early. The ball is still out of box surface but I plan to take the surface to 4000 with polish to get the ball down the lane.
Is it worth drilling out the thumb insert and take the ½ oz. thumb weight to zero? Without the ½ oz. thumb weight will the ball get down the lane further?
With this symmetrical solid ball is it true that static weights don’t matter that much due to today’s aggressive cores? So basically what do I get taking out the ½ oz. thumb weight?
Thanks In Advance
Mike
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Surface dictates almost 70% of the ball's reaction. Static weights just don't come into play with modern technology.
When you say thumb insert are you referring to a Switch Grip or IT system?
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Changing the surface weakening as you are doing could help a good bit.
Many old timers on the right almost never like thumb weight often(only heavy long oil).
We lefties often like a little thumb weight as our normal oil is often your heavy oil by the end of practice. BUT oil must be present.
For many drillers today set up balls with some thumb weight before applying one of these strategic reaction changing weightholes.
Great read I think...Mo Pinel Gradient weight holes:
http://www.morichbowling.com/Education/GradientLineBalanceHole/GRADIENT_LINE_BALANCE_HOLE.pdf
Regards,
Luckylefty
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The gradient weight hole placement is slightly different for a symmetrical ball as it doesn't have a marked psa and the psa usually ends up in the thumb hole! Just my $.02, Bruce
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I would be drilling out an insert/sleeve “VISE PRO V2â€. I have one person agreeing with me that the thumb weight on this ball doesn’t play a big role in early hook. Can I have a few more opinions? I am of the camp that the ½ oz thumb weight isn't playing a large roll on early hook for this ball. I believe taking the ball to 4000 & polish should do the trick.
Can I have a few more opinions?
Funny Bowler happens to be left handed.
Thanks
Mike
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That isnt a lot of thumb weight, it wouldnt affect the ball roll too much, and anything done to remove the thumb weight now would increase the flare and make the ball hook more. A light coat of polish (namely xtra shine) would make the ball go longer while smoothing out the reaction.
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Surface first.
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Lane condition and surface finish. Wouldn't both messing with statics, assuming they are legal.
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I responded to a PM he sent me before I knew he had started a topic. Here's my response, comments welcome. -- JohnP
Static weights do have a little affect, but with modern cores it isn't significant. If you do want to try lowering the thumb weight I wouldn't drill out the insert, just use a bit that will fit through it and go deeper. If the 4000 + polish doesn't help I'd add a P1 balance hole to reduce the flare. The P1 hole is located on the VAL, 6 3/4" from the psa. For a symmetrically cored ball the psa is located about 1/2" left of the grip centerline (for a rightie) and 6 3/4" from the pin. You want to use the largest hole that you can drill at least 2 1/2" deep and stay statically legal. I've used P1 holes for customers and they do reduce the ball's strength. -- John
Note: I'm not sure exactly what the Vise Pro V2 insert is, it may not be possible to drill through it.
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Note: I'm not sure exactly what the Vise Pro V2 insert is, it may not be possible to drill through it.
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Should be no problem to drill out.It's a sized thumb insert instead of a thumb
slug.Take a look:http://www.buddiesproshop.com/p-2107-vise-pro-v2-oval-thumb-insert-white.aspx (http://www.buddiesproshop.com/p-2107-vise-pro-v2-oval-thumb-insert-white.aspx)
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Surface is between 70-75% of overall ball reaction...static weights less than 7%...I'd go with smoothing up surface
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Thanks to everyone for your comments. I probably only drilled about 50 balls so far over the past three years for friends and I am still learning. 45 people of the 50 were happy with ball drilling after fitting so fine tunning the ball reaction I still have a few thing to learn because I question my decisions. Thanks again.
Mike
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Note: I'm not sure exactly what the Vise Pro V2 insert is, it may not be possible to drill through it.
Should be no problem to drill out.It's a sized thumb insert instead of a thumb
slug.Take a look:http://www.buddiesproshop.com/p-2107-vise-pro-v2-oval-thumb-insert-white.aspx (http://www.buddiesproshop.com/p-2107-vise-pro-v2-oval-thumb-insert-white.aspx)[/quote]
OK, thanks for the info. I use (what I call) sleeves regularly, but the Contour brand. I was in a hurry when I made the response and didn't take the time to search out the info, thought it may be some new type of interchangeable device that fastened to the bottom of the hole. All he has to do is use the same pitches and be sure the bit is smaller than the smallest dimension of the oval. -- JohnP