Dual Angle Matrix

Determine a Dual Angle Layout

Core Shape Effect

Core Shape determines Motion Shape

Blueprint Software

Computer Aided Drilling

Yin Yang Effect

You can't have one without affecting the other

Types of Ball Motion

Motion shapes that your brain sees

Bowlers Edge Dual Angle Matrix

Developed by Gary Faulkner, the Bowlers Edge Dual Angle Matrix can help you determine what Dual Angle Layout you might want in your next ball. Right Click on the Matrix Photo to save to your computer and print.

  • Step 1 - Write down the Dual Angles of a current ball that you have. In dual angle notation it would be the 1st and 3rd numbers. I.E. 80* x 4 x 40*
  • Step 2 - Get the sum total of the angles by adding them together. I.E., from Step 1, 120.
  • Step 3 - Get the Ratio of the dual angles. I.E. from Step 1 the ratio of the dual angles is 2:1.  
  • Step 4 - Plot it on the graph.
  • Step 5 - Repeat the process with another ball.

When you have plotted all of your bowling balls on the Matrix you will start to see whether or not you have a variety of layouts. Having different layouts will give you a wider variety of motion shapes to choose from. Here's some general observations when using the Matrix.
•Speed Dominate Bowlers tend to do better with Faster Transition Layouts
•Rev Dominate Bowlers tend to do better with Slower Transition Layouts
•Low Rev Bowlers would want to keep their layouts as close to the Low Rev Rate Line as possible.
•High Rev Bowlers would want to keep their layouts as close to the High Rev Rate Line as possible.

Core Shape Effect

Core Shape determines ball motion shape.


Bowling balls have a wide variety of Core Shapes. The Core Shape is the "Engine" of the ball and the Coverstock is the "Tires". The Core has its own spin rate, separate from the bowler, and its own Perferred Spin Axis (PSA). The PSA of the core is different then the Positive Axis Point (PAP) of the bowler's release. The PSA is where the PAP is migrating towards when the Core is trying to become stable. There are some general rules that apply to Core Shapes and their effect on ball motion. Ball motion has 3 phases, Skid - Hook - Roll.

  • The taller and thinner the core shape the later the roll phase starts.
  • The shorter and fatter the core shape the earlier the roll phase starts.
  • The smaller the overall size of the core the shorter the length of the roll phase.
  • The larger the overall size of the core the longer the length of the roll phase.
  • The smoother the shape of the core, the longer the hook phase, the smoother the ball reaction.
  • The more angles a core shape has, the shorter the hook phase, the more angular the ball reaction.
  • Symmetrical core shapes have longer skid phase, longer hook phase, and shorter roll phase.
  • Asymmetrical core shapes have shorter skid phase, shorter hook phase, and longer roll phase.

Core Strength Rating Scale

This chart ranks the  current core shapes being used by the manufacturers. Just remember this does not tell you how strong a ball will be. This list does not factor in the Cover-stock, lane conditions, etc.. The chart only uses the un-drilled core. It is to be used as 1 of many tools to help on choosing a ball to drill. The higher the number the more influence that core will have on your ball motion.

Blueprint-Computer Aided drilling

Don't just bowl with the ball that the pros use, bowl with the ball that fits your game. We are the only Hampton Roads bowling pro shop that offers a COMPLETE service that fits a bowling ball to your individual game. Blueprint is a Computer Aided Design (CAD) software that can be used to determine what bowling ball, surface, and drilling layout to use on any given lane condition based on the bowler's delivery. Using Powerhouse Blueprint we can determine if a new ball is proper for a given lane condition before the ball is even drilled.

Blueprint allows you to simulate the on-lane performance of your virtually-drilled bowling ball, taking into account the ball's as-drilled mass properties and coverstock characteristics, the oil pattern and lane surface, and the bowler's unique delivery parameters. We can use the Blueprint Software to change the layout of existing drilled bowling balls to see if a change in layout or adding a balance hole will change the bowling ball's reaction. Additional highlights from the virtual ball drilling process include:
Calculation of the ball's as-drilled mass properties, including RGs, overall differential, intermediate differential (mass bias), static weights, and principal (minimum, maximum, and intermediate) RG axis position relative to the positive axis point (PAP).
Interactive 3D display of the drilled and undrilled bowling ball, with coverstock transparency for easier visualization of how the core is affected by the drilling; rotate, zoom, and pan the model to better see areas of interest.
Optional overlay of the ball's as-drilled principal mass moment of inertia (RG) axes and the bowler's PAP...see how the RG axes move when the ball is drilled and how they are oriented relative to the PAP.
Optional overlay of an RG contour plot on the ball's surface...a Blueprint-exclusive feature that lets you better position the core relative to the PAP for optimal on-lane track flare.
On-Lane Ball Motion Simulation
Blueprint allows you to simulate the on-lane performance of your virtually-drilled bowling ball, taking into account the ball's as-drilled mass properties and coverstock characteristics, the oil pattern and lane surface, and the bowler's unique delivery parameters.

Highlights of the on-lane ball motion simulation include:
Calculation of various pocket entry ball motion parameters, such as entry angle, ball speed, axis rotation, and axis tilt.
Optional overlay of the oil pattern on the ball path plot.
Plotting of multiple shots at once, allowing for easy comparisons.
Plotting of various parameters as the ball travels down the lane, including coverstock friction, ball speed, rev rate, and rotation angles.
PowerHouse Blueprint is a registered trademark by Ebonite International. Screenshots and descriptions are courtesy of Powerhouse Blueprint and 3DB Technology, LLC. All rights reserved.

Yin Yang Effect

You can't have one without affecting the other.


The more reaction that you create in the front part of the lane, the less reaction you will have at the back of the lane. The less reaction that you create in the front of the lane, the more reaction that you will have at the back part of the lane. Yin Yang. So, how do you change the reaction and where it starts to happen? Adjust the coverstock, or shell, of the ball with abrasives and/or polishes. The general rule is this: The rougher the cover preparation the earlier and smoother the reaction. The smoother the cover preparation the later and angular the reaction.

Types of Ball Motion

Ron Hickland Jr., CEO of Creating The Difference, has 4 excellent videos illustrating types of bowling ball motions that bowlers will see. We have them linked below for you to view.

NO HOOK

ANGULAR

TRACTION

CONTINUOUS

Here are 3 videos from Mo pinel showing Ball Motion