No balance hole alternatives
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No balance hole alternatives
If you want a smaller drill angle, it usually meant needing a balance hole to get the static weight right. With no balance hole any more, how do you get the smaller drill angle effect? Thanks!
Left Handed, 15 lb
PAP 4.5” up 1/2"
~60* rotation
~17* tilt
~250 RPM
~15 mph off hand
PAP 4.5” up 1/2"
~60* rotation
~17* tilt
~250 RPM
~15 mph off hand
- EricHartwell
- Trusted Source
- Posts: 4080
- Joined: April 5th, 2011, 12:24 am
- Positive Axis Point: 4-3/4" and 1/2"up
- Speed: 16 off hand
- Rev Rate: 330
- Axis Tilt: 12
- Axis Rotation: 45
- Heavy Oil Ball: Radical Tremendous, EVO solid, Hammer Obsession
- Medium Oil Ball: EVO pearl, True Motion, Columbia Command, DV8 Intimidator
- Light Oil Ball: Blue Hammer
- Location: Michigan
Re: No balance hole alternatives
Buy an Asymmetrical ball.todvan wrote:If you want a smaller drill angle, it usually meant needing a balance hole to get the static weight right. With no balance hole any more, how do you get the smaller drill angle effect? Thanks!
Eric Hartwell
Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand
Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand
- deanchamp
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- Joined: August 4th, 2010, 10:23 am
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- Location: Melbourne, Australia
Re: No balance hole alternatives
With the allowances of 3oz side weight, you should be ok to use smaller drill angles on an asymm ball.todvan wrote:If you want a smaller drill angle, it usually meant needing a balance hole to get the static weight right. With no balance hole any more, how do you get the smaller drill angle effect? Thanks!
USBC Silver Level Coach
BCU Graduate - Mastery of Layouts
BTM contributor
BCU Graduate - Mastery of Layouts
BTM contributor
Re: No balance hole alternatives
But for people who need lower ratios and smaller angle sums, symmetric balls are no longer an option ?
Left Handed, 15 lb
PAP 4.5” up 1/2"
~60* rotation
~17* tilt
~250 RPM
~15 mph off hand
PAP 4.5” up 1/2"
~60* rotation
~17* tilt
~250 RPM
~15 mph off hand
- stevespo
- Member
- Posts: 584
- Joined: August 11th, 2014, 8:07 pm
- THS Average: 225
- Positive Axis Point: 5.75" x + 3/8"
- Speed: 17+ off hand (camera)
- Rev Rate: 375
- Axis Tilt: 12
- Axis Rotation: 45
- Heavy Oil Ball: Phaze II, Altered Reality
- Medium Oil Ball: IQ Tour Nano, Zen, Phase III
- Light Oil Ball: Electrify Pearl
Re: No balance hole alternatives
I guess it depends on how low the ratios and sums need to be.todvan wrote:But for people who need lower ratios and smaller angle sums, symmetric balls are no longer an option ?
After drilling a symmetric, the MB/PSA ends up in/near the thumb, so the effective drill angle is fairly large - unless you can stick a big balance hole near the VAL to shift the MB/PSA and reduce the drill angle.
Without that balance hole you may not be able to get the lower sum and ratio you desire. You may still be able to get an early, controllable reaction with surface and using a higher flaring pin position. Or an asym, as recommended.
Steve
16 mph (14-14.5 on monitor), 375 rpm, PAP 5 1/2 x 3/8 up, AT: 12*, AR: 45*
Re: No balance hole alternatives
Another thought...if the drill angle is measured to the thumb hole, having the pin closer to the PAP would decrease the drill angle somewhat. I wonder if going from a 4” pin to PAP down to a 3” would be worth a try to get the lower angle ratio and sum on a symmetric ball...even though it would flare less.
Otherwise, I am hoping the manufacturers come out with more medium asymmetries at the mid price point....haha, not likely.
Otherwise, I am hoping the manufacturers come out with more medium asymmetries at the mid price point....haha, not likely.
Left Handed, 15 lb
PAP 4.5” up 1/2"
~60* rotation
~17* tilt
~250 RPM
~15 mph off hand
PAP 4.5” up 1/2"
~60* rotation
~17* tilt
~250 RPM
~15 mph off hand
- EricHartwell
- Trusted Source
- Posts: 4080
- Joined: April 5th, 2011, 12:24 am
- Positive Axis Point: 4-3/4" and 1/2"up
- Speed: 16 off hand
- Rev Rate: 330
- Axis Tilt: 12
- Axis Rotation: 45
- Heavy Oil Ball: Radical Tremendous, EVO solid, Hammer Obsession
- Medium Oil Ball: EVO pearl, True Motion, Columbia Command, DV8 Intimidator
- Light Oil Ball: Blue Hammer
- Location: Michigan
Re: No balance hole alternatives
Pin to PAP really doesn't change the drilling angle very much. Shorter pin to PAP is actually results in a larger drilling angle and longer Pin to PAP results in smaller drilling angles, about 10 degrees difference.todvan wrote:Another thought...if the drill angle is measured to the thumb hole, having the pin closer to the PAP would decrease the drill angle somewhat. I wonder if going from a 4” pin to PAP down to a 3” would be worth a try to get the lower angle ratio and sum on a symmetric ball...even though it would flare less.
Otherwise, I am hoping the manufacturers come out with more medium asymmetries at the mid price point....haha, not likely.
Smaller VAL angles produce smaller Drilling angles measured to the thumb hole and Larger VAL angles produce larger Drilling angles to the thumb.
Pin to PAP is utilized to manage the amount of flare. Less flare will effectively raise the total angles whereas High flaring positions make the ball act like it has smaller totals.
Eric Hartwell
Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand
Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand
Re: No balance hole alternatives
Mo seminar now posted:
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Thinking of avoiding symmetric for anything I buy this year. Need a more medium benchmark reaction from an asymmetric ball. Maybe a Ludicrous?
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Thinking of avoiding symmetric for anything I buy this year. Need a more medium benchmark reaction from an asymmetric ball. Maybe a Ludicrous?
Left Handed, 15 lb
PAP 4.5” up 1/2"
~60* rotation
~17* tilt
~250 RPM
~15 mph off hand
PAP 4.5” up 1/2"
~60* rotation
~17* tilt
~250 RPM
~15 mph off hand
- snick
- BCU Graduate Layouts
- Posts: 759
- Joined: August 31st, 2014, 8:00 pm
- THS Average: 196
- Sport Average: 180
- Positive Axis Point: 5.5625" x .625 up
- Speed: 17 off hand
- Rev Rate: 360
- Axis Tilt: 17
- Axis Rotation: 55
- Heavy Oil Ball: Storm Physix
- Medium Oil Ball: Storm Streetfight
- Light Oil Ball: Rotogrip Hustle Pearl
- Preferred Company: Rotogrip
- Location: Tucson, AZ
Re: No balance hole alternatives
IMO< the reality is that the proportion of asymm sales will increase dramatically, and the net effect of the rule changes will be more or less nil, in terms of pattern stability/longevity.
ie: the goals of the rules changes are based on the assumption that the proportion of asymm/symm sales will not change, and that proshops will not employ trick drilling techniques to achieve higher diffs and happier customers.
ie: the goals of the rules changes are based on the assumption that the proportion of asymm/symm sales will not change, and that proshops will not employ trick drilling techniques to achieve higher diffs and happier customers.
Benchmark Bowling Pro Shop
Byron
RH
PAP: 5.5625 x .625 up
REVRATE: 360
SPEED: 17mph at release
AR: 55º
AT: 17º
Byron
RH
PAP: 5.5625 x .625 up
REVRATE: 360
SPEED: 17mph at release
AR: 55º
AT: 17º