Gear & Specs
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| The Columbia Icon 2 is one of the best balls
I've ever thrown. |
Joe Teixeira's Current Gear
Bowling Balls:
- Columbia Icon 300 { Specs
}
- Roto Grip Global Assault
- Columbia Icon 2 { Specs
}
- Columbia Game { Specs
}
- Columbia Wicked { Specs
}
- Columbia Reaction Ricochet { Specs
}
- Columbia Ti Messenger { Specs
}
- Columbia Scout Reactive { Specs
}
- Columbia Scout { Specs
}
- Columbia White Dot { Specs
}
Joe Teixeira's Drilling Specs
If you would like to know what all of those numbers, arrows, and information stands
for, click on any of the numbers, arrows, text, or areas that you wish to know about.
Or, just continue reading below for all of the definitions.
4 1/16
This number represents the distance, in inches, between the bottom-most edge of the
left fingerhole, and the upper-most edge of the thumbhole. The red lines around these
holes help determine where to drill them.
Click here to go back to the drilling specs sheet
4 1/8
This number represents the distance, in inches, between the bottom-most edge of the
right fingerhole, and the upper-most edge of the thumbhole. The red lines around these
holes help determine where to drill them.
Click here to go back to the drilling specs sheet
PAP: 3 3/8" Over, 3/8" Up
The Positive Axis Point (PAP) is a point on the bowling ball that it wants to initially
rotate about, upon the bowler's release. In my particular instance, my Positive Axis
Point is 3 3/8" Over, and 3/8" Up from the center of the grip. The word
"Over" refers to a distance (3 3/8") along the Mid-Line. The word "Up"
refers to a distance (3/8") along the Vertical Axis Line (VAL).
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Hand / Span
The word "Hand" is referring to the hand I bowl with. The word "Span"
refers to the type of span currently displayed. There are two types of spans: Actual,
which is the actual distance between where the bowler inserts his / her fingers and
thumb; and Cut, which refers to the exact distance between the raw, inner-most edges
of the drilled finger and thumb holes. Most Pro Shop operators will try to use a Cut
span whenever possible, as it's easier to measure and reproduce onto another drilling
specs sheet, or bowling ball.
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Track
The word "Track" is the area on the ball which is in contact with the bowling
lane, from the bowler's release, to the moment it hits a pin. The dynamics of the
bowler's release, along with the coverstock and the core construction of the bowling
ball, help determine the type of Track that the bowler has produced. A "High"
Track is a track that is very close to the finger and thumb holes. A "Mid"
or "Medium" Track is a track that is about 2 - 4 or 5 inches away from the
finger and thumb holes. A "Low" Track is a track that is about 5 or more
inches away from the finger and thumb holes.
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Tilt / Axis Tilt
"Tilt", or "Axis Tilt", refers to the angle, measured in degrees
using a quarter-scale, of the Track. A "Low" Tilt is a Tilt on a bowling
ball that measures from 0 to about 20 or 25 degrees. A "Medium" Tilt is
a tilt about 25-55 degrees. A "High" Tilt is a tilt that measures over 55
degrees. The highest percentage of bowlers will have a Low or Medium Axis Tilt.
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<- 1/4
This refers to the angle in which the hole beside it was drilled. In this instance,
the hole was drilled at a 1/4" angle, "away" from the palm of the hand.
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5/8 ->
This refers to the angle in which the hole beside it was drilled. In this instance,
the hole was drilled at a 5/8" angle, "away" from the palm of the hand.
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31
This number refers to the drill bit size that was used to drill that particular hole.
Here, a 31/32" drill bit was used.
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21 - Contour Yellow
This is the size of the grip that is used within the drilled hole. Usually, all grips
have a diameter of 31/32". This particular grip is a Contour Grip, and is a 21/32",
yellow grip.
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5 - Contour Yellow
This is the size of the grip that is used within the drilled hole. Usually, all grips
have a diameter of 31/32". This particular grip is a Contour Grip, and is a 5/8",
yellow grip.
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1/8
This number refers to the angle in which the hole beside it was drilled. In this particular
instance, the hole was drilled at 1/8" "forward", and "under"
the palm.
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1 1/8
This number refers to the drill bit size that was used to drill that particular hole.
Here, a 1 1/8" drill bit was used.
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27 - Contour Oval
This is the size of the thumb grip that is used within the drilled hole. Usually,
most thumb grips 1" size of less will use a 1 1/8" hole. Any thumb grips
bigger then 1" will normally use a 1 1/4" hole. In this particular instance,
a 27/32 Contour Oval thumb grip is used.
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