Widow Series
Black Widow Clear
Basic Drilling
Please Note:
Because all bowlers have different positive axis points (PAP) your
layouts may not have the same appearance as the illustrations. Also the
layouts are for right-handed players. Remember to flip or rotate to
produce "mirror-image" for left-handed players.
Asymmetrical Drilling Layouts
Layout 1 - Skid/Flip Layouts
- Ball Motion - Length with sharp
breakpoint and aggressive backend
- Lane Condition - Medium to Heavy Oil
- Flare Potential - Medium
- Pin Placement - Place pin at 5 1/2" from
the positive axis point (PAP)
- Mass Bias - Place Mass Bias in the
strong position
- Balance Hole - If needed, place the
balance hole at 4" from the center of span on a line through the center
of gravity
Layout 2 - All Purpose Layouts
- Ball Motion - Length with controllable
breakpoint
- Lane Condition - Medium Oil
- Flare Potential - Medium
- Pin Placement - Place pin at 5" from the
positive axis point (PAP)
- Mass Bias - Place Mass Bias near the
vertical axis line
- Balance Hole - If needed, place the
balance hole at 4" from the center of span on a line through the center
of gravity
Layout 3 - Strong/Aggressive Layouts
- Ball Motion - Strong and controllable
hook
- Lane Condition - Heavy Oil
- Flare Potential - High
- Pin Placement - Place pin at 4" from the
positive axis point (PAP)
- Mass Bias - Place Mass Bias in the
strong position
- Balance Hole - If needed, place the
balance hole at 4" from the center of span on a line through the center
of gravity

Layout 4 - Label layout (Smooth Arc)
- Ball Motion - Excellend length with
smooth arc
- Lane Condition - Medium Oil
- Flare Potential - Medium
- Pin Placement - Place pin at 4 1/2" from
the positive axis point (PAP)
- Mass Bias - Place Mass Bias near the
ball track
- Balance Hole - If needed, place the
balance hole at 4" from the center of span on a line through the center
of gravity
Layout 5 - Full Roller Layout
- Ball Motion - Strong arc
- Lane Condition - Medium to Heavy Oil
- Flare Potential - High
- Pin Placement - Place pin at 3 1/2" from
center of span located in the 7:30 position
- Mass Bias - Place Mass Bias in 2:30
position relative to the center of the span
High Performance Drilling Instructions
Symmetrical Drilling Instructions
Pro Drilling Instructions
Note: For reaction adjustments, consult
the Ball Surface Reaction Guide.
Be sure to check for excess side weight and finger/thumb weight, as a
balance hole may be necessary for any of these layouts. If one is
required, draw a line from the center of the grip through the CG and
extend to the PAL. This will be the location of the balance hole.
Layout 1
With this layout we place the pin 5-���¯�¿�½��¯��¿��½����¯����¿����½���¯�¿�½��¯��¿��½���¯�¿�½����¾" from the PAP, above the
finger holes, to produce length on drier conditions.
Next we select a MB (Mass Bias) position suitable for our breakpoint
shape.
(A) MB in the Ball Track designed to
produce a late and smooth breakpoint.
(B) MB in the Strong Position This will
produce an earlier and shaper breakpoint than Position A.
- Good for extreme entry angle!
(C) MB on the PAL produces the earliest
breakpoint of three positions while providing a controllable and
"readable" backend.
- Works great on heavy oil patterns!
Layout 2
With this layout, we place the pin 4-���¯�¿�½��¯��¿��½����¯����¿����½���¯�¿�½��¯��¿��½���¯�¿�½����¼" from the PAP. This
position will produce medium to high flare, great for players trying to
"open up" on a medium to heavy oil lane condition.
For bowlers with medium to high rev rates, this position will often
produce the most overall hook throughout the entire lane.
Now select a MB (Mass Bias) position.
(A) locate the MB halfway between the ball
track and PAL to produce a sharp breakpoint
(B) Place the MB at the PAL for an
earlier, smoother breakpoint.
(C) Place the MB 2" past the PAL for a
very heavy midlane roll on long oil patterns.
Layout 3
Place pin and CG 4-���¯�¿�½��¯��¿��½����¯����¿����½���¯�¿�½��¯��¿��½���¯�¿�½����½" from PAP.
Use scale to determine static balance.
Produces length and an arcing backend.
A layout every player should have in their bag.
Layout 4
Note: To remove excess finger weight,
drill finger holes 2.5" deep.
Place pin and CG 3-3/8" from PAP.
Use scale to determine both side and finger weight.
Locate balance hole on PAP and remove excess side weight to ���¯�¿�½��¯��¿��½����¯����¿����½���¯�¿�½��¯��¿��½���¯�¿�½����¾
oz positive.
Produces maximum flare and hook
Works especially well for Tweeners and Strokers!
Layout 5
Place pin CG 5-1/2 from PAP.
Locate Mass Bias in between ball track and strong position.
Use scale to determine static balance.
To locate a balance hole if necessary, draw a line from grip
center through CG and extend to axis midplane.
High track players will benefit from this layout.
Layout 6
Place pin and CG 4-1/2" from PAP.
Place Mass Bias on the axis midplane.
to locate the balance hole if necessary, draw a line from grip
center through CG and extend through axis midplane.
This drilling will help generate more midlane roll.