Things To Remember

These are basic drillings and are recommended starting points. However, these balls can be drilled many different ways and could/should be fined tuned to meet the needs of each individual bowler. Do no hesitate to adjust the drill pattern to match the lane conditions and the bowler's personal characteristics such as ball speed, revolutions and axis rotation.

The illustrations of the drill patterns show the PIN, CG (Center of Gravity), Extra Hole placement and the PAP (Bowler's Positive Axis Point). We used a PAP of approximately 5 inches straight over for the purposes of our illustrations.

Recognize that all illustrations shown are for right-handers. Reverse drill pattern for left-handers.

Top Weight: High top weight tends to make the ball skid further and store energy through the front end of the lane. We recommend high top weight for drier lanes or bowlers with below average ball speed, medium top weight for medium oil and medium ball speeds and low top weight for heavy oil or bowlers with above average ball speed.

Extra Holes: Extra holes are required in several drillings. We recommend placing the hole on the positive axis point or one inch past most of the time. Be careful! Please consider the strength of the bowler's release and the drill pattern being used before selecting the extra hole position more than one inch past the bowlers positive axis point.

Static Side Weight: We recommend that all balls be drilled with approximately ½ ounce side weight to start. If the bowler wants to reduce back end reaction, gradually remove the positive side weight.

Surface: the surface of today's balls play an extremely important role in matching the bowler's needs with the lane conditions where they bowl. To create the best ball reaction, do no hesitate to adjust the surface by sanding or polishing. To add control and move the breakpoint closer to the bowler, increase the friction of the ball by sanding. To delay the breakpoint and increase the flip potential in the back end of the lane, reduce the friction of the ball by polishing.

How to Use Drilling Instructions

1. Select pin position to determine the amount of flare and hook needed.
2. Select Mass Bias placement to determine the desired reaction shape (I.E. Arc, Flip, or Forward Roll)
3. Use balance hole placement to fine tune total flare and length
4. Adjust the surface to control overall hook

Coverstock Maintenance

1. Wiping the ball between shots (preferably with a micro-fiber towel.)
2. Cleaning the ball AFTER the league or tournament session is done with a strong emulsifying cleaner.
3. After extensive usage, use a product designed to remove oil from the coverstock.
4. Polishing - if you desire to polish the coverstock it will help reduce the friction in oil and allows the ball to retain more energy and still provide the same strong, continuous back end.

Drilling #1 - Label Drilling

Drill Pattern:

Label (5 x 5)

Ball Reaction:

This pattern will create medium flare potential, give the most skid throughout the front part of the lane and a strong back end reaction. It will work better than the other patterns when the lanes begin to break down.

Drilling #2 - Label Leverage Drilling

Drill Pattern:

Label Leverage (3 3/8 x 5)

Ball Reaction:

This pattern will generate the highest flare potential, create medium to strong skid through the front part of the lane and big back end reaction.

Drilling #3

Drill Pattern:

(4½ x 3½, Extra Hole 1" beyond PAP)

Ball Reaction:

This pattern will generate strong flare potential, create medium skid through the front part of the lane and the most dramatic reaction at the breakpoint.

Drilling #4

Drill Pattern:

(4; x 2, Extra Hole 1" beyond PAP)

Ball Reaction:

This pattern will generate high flare potential and create early to medium roll through the front part of the lane. This layout works well on heavy oil and promotes and even, very controllable reaction in the back end of the lane.

Drilling #5

Drilling Pattern:

(4 x 0, Extra Hole on PAP)

Ball Reaction:

This pattern will generate high flare potential and create the earliest roll. this drill pattern is the most even reaction on the back end of the lane and will work best on wet/dry lane conditions of all the drill patterns shown.

Drilling #6 - Full Roller (Label)

Drill Pattern:

Full Roller - Label

Ball Reaction:

This pattern will generate little to no flare potential and create good length through the front part of the lane. this layout basically takes the core out of play and ball reaction is determined by the aggressiveness of the coverstock material and the strength of the player's release.

Drilling #7 - Full Roller Leverage

Drill Pattern:

Full Roller Leverage (Pin @ 7:30 position, 3 3/8 inches from center of grip)

Ball Reaction:

This pattern will generate the most flare potential for a Full roller releases. This layout creates medium length through the front part of the lane and the most overall hook.

Pin to Positive Axis Point Distance Chart

Strongly Speed Dominant Drilling

Strong Reaction

Mass Bias:

5-¾",4-¾", 4

Pin Placement:

Pin 3-½" from PAP
Pin 1-½" from VAL

Balance Hole

Balance Hole on VAL

Medium Reaction

Mass Bias:

MB 4-¾", 4",3-¼"

Pin Placement:

Pin 3-½" from PAP
Pin even or slightly higher than finger line

Balance Hole:

Balance hole on VAL

Smooth or Long Transition

Mass Biass:

MB 4-¾", 4" , 3-¼"

Pin Placement:

Pin 3-½" from PAP
Pin 1-½" above mid-line

Balance Hole:

Balance hole on VAL

Strongly Rev Dominant Drilling

Strong Reaction

Mass Bias

MB 6-¾" , 5-¼"

Pin Placement:

Pin 5" from PAP
Pin ½" to ¾" above fingers

Balance Hole:

Balance Hole on VAL

Medium Reaction

Mass Bias:

MB 5-18", 3-½"

Pin Placement:

Pin 5-½" from PAP
Pin ¾" above fingers

Balance Hole:

Balance Hole on VAL

Delayed Reaction

Mass Bias:

MB 6-¾", 6-1/8"

Pin Placement:

Pin 2" and 1-½" from VAL

Balance Hole:

Balance hole on VAL

Rev & Speed Rate Match Drilling

Strong Reaction

Mass Bias:

MB 6-¾", 5-¾",4-¾"

Pin Location:

Pin 3-½" from PAP
Pin even or slightly above finger line

Balance Hole:

Balance hole on VAL

Medium Reaction

Mass Bias:

MB 6-¾",5-½",4-3/8"

Pin Placement:

Pin 4" from PAP
Pin even or slightly above finger line

Balance Hole:

Balance hole on VAL

Delayed Reaction

Mass Bias:

MB 5-3/8",4",3-1/8"

Pin Placement:

Pin 4-½" from PAP
Pin slightly above finger line

Balance Hole:

Balance hole on VAL

Mildly Rev Dominant Drilling

Strong Reaction

Mass Bias:

MB 6-¾", 5-3/8", 4"

Pin Placement:

Pin 4-½" from PAP
Pin on or slightly above finger line

Balance Hole:

Balance Hole on VAL

Medium Reaction

Mass Bias:

MB 3-¾", 2-¾"

Pin Placement:

Pin 5" from PAP
Pin on or slightly above finger line

Balance Hole:

Balance hole on VAL

Delayed Reaction

Mass Bias:

MB 6-¾",6"

Pin Placement:

Pin 2-½", and 1-½" from VAL

Balance Hole:

Balance hole on VAL

Mildly Speed Dominant Drilling

Strong Reaction

Mass Bias:

MB 6-¾",5-¾",4-¾"

Pin Location:

Pin 3-½" from PAP
Pin 1-½" frin VAL

Balance Hole:

Balance hole on VAL.

Medium Reaction

Mass Bias:

MB 5-¾", 4-¾", 4"

Pin Location:

Pin 3-½" from PAP
Pin even or slightly above midline

Balance Hole:

Balance hole on VAL

Delayed Reaction

Mass Bias:

MB 4-3/8", 3-½", 2-¾"

Pin Location:

Pin 4" from PAP
Pin even or slightly above finger line

Balance Hole:

Balance hole on VAL

Drilling Layout 1
3-½" x 3-½" CG Down

Drilling Layout 2
Leverage (3-3/8" x 4-½")

Drilling Layout 3
4" x 2", Extra Hole 1" beyond PAP

Drilling Layout 4
4-½" x 3-½", Extra Hole 1" Beyone PAP

Drilling Layout 5
2½" x 5", No Balance Hole

Drilling Layout 6
Label (5" x 5 ")

Drilling Layout 7
Full Roller-Leverage
(Pin @ 7:30 position, 3-3/8" from center of grip)

Drilling Layout 1
Label (5" x 5")

Drilling Layout 2
Label Leverage (3-3/8" x 5")

Drilling Layout 3
4-½" x 3-½", Extra Hole 1" beyond PAP

Drilling Layout 4
4" x 2", Extra Hole 1" beyond PAP

Drilling Layout 5
4" x 0", Extra Hole on PAP

Drilling Layout 6
Full Roller Label

Drilling Layout 7
Full Roller - Leverage (Pin at 7:30 position, 3-3/8" from center of grip)