bowl1820

What is Grab?
Or your grip/swing tension number.

When you are in your stance, on a scale of 1 to 10 with 1 being a feather and 10 being a death grip what is your number?

Let's say it is a 6 for sake of discussion. Then 6 has to be maintained throughout the swing and release. If 6 turns into 7, 8, 9 or 10 at any point throughout the swing or release - that is grab.

Response time to Friction

Refers to how fast or slow a bowling ball responds to friction.

A Fast response time means that the ball responds quicker when it encounters friction, A Slow response is just the opposite. So In general, a quicker response to friction means a faster 2nd transition.

In other words a quick response time to friction is just that, the ball will rev up and change direction as soon as it encounters friction.

Vise Hada Patch - 40 pieces

1 - Quickest

2 - slightly slower

3 - even slower

4 - slowest release


Vise Hada Patch Blue (#1)
The Blue Hada patch is the smoothest material.
The Blue Hada Patch tape gives you the fastest release of
all the Hada Patches made.

Vise Hada Patch Red (#2)
The Red Hada patch is smoother material,than the Aqua Hada Patch.
The Red Hada Patch tape gives you a faster release,
than the Aqua Hada Patch, but slower then the Blue Hada Patch.

Vise Hada Patch Aqua (#3)
The Aqua Hada patch is smoother material, than the Gray Hada Patch.
The Aqua Hada Patch tape gives you a faster release,
than the Gray Hada Patch but slower release then the Red Hada Patch.

Vise Hada Patch Gray (#4)
The Grey Hada patch is the roughest material.
The Grey Hada Patch tape gives you the slowest release
of all 4 Hada Patch tapes.

Pearl Balls
There are at least 2 ways to pearlize a ball. If you use powdered pearl, you will NOT add length, just increase the shape of the breakpoint. If you use liquid pearl (mother of pearl), you will definitely add length.

Coefficient of Restitution (COR)
The ratio of the energy of two objects after impact to the energy before impact. In the case of a
ball striking a pin, this is the percentage of energy transfer from the ball to the pin

There is a USBC specified range of between 0.650 and 0.750 in COR, the difference in filler materials is only really from around 0.700-0.7100 with normal three piece construction to 0.720-0.730 in two piece construction. It's not really a significant increase in energy transfer to the pins.

Basically the measurement of COR is that you transfer more energy to the pins meaning, that the head pin will come off of the ball with a slightly higher velocity than with a lower COR. You might throw one more pin off the kickback plate out of 20 let's say the difference would be negligible.


Two different results occur from differences in COR:
Higher COR means more pin velocity and more ball deflection. Lower COR means less pin velocity, but less ball deflection.Which one would you like. Six of one; half dozen of another!

According to Brunswick;

"More coverstock (A Thicker cover) enhances the Coefficient of Restitution which is the ratio of the differences in velocity between two objects before and after a collision. The higher the restitution, the faster the pins will move after being struck by the ball, transferring that increased kinetic energy to the surrounding pins producing greater pin action!"

Flare Safe Zone.

I don't know that it's a set in stone rule, but it has been a general guideline for approximating the top bowtie location.

This has to do with what is called the Flare Safe zone, if you had a high track and you put the pin too low. You ran the risk of the ball flaring over your finger holes.

The old guideline on what you did was draw a line from your initial PAP through your Ring finger hole to the track. (This IMO showed basically where your release would cause the bowtie to be.)

Then If you placed the pin above and to the right of that imaginary line (on high track players) it minimized the chances of the ball tracking (flaring) over the finger holes.

If you placed the pin below that imaginary line you ran a greater risk of the ball tracking (flaring) over the finger holes.

You would also see "draw a line from the PAP through the pin to the track. To approximate the top bowtie location." used in conjunction with it. (This IMO showed basically where the ball layout +release would most likely cause the bowtie to be.)

This is a quote from Ebonite that relates to this also:

"If you draw a line from the positive axis point, through the locator pin to your ball track, that spot would constitute the pivot for your track flare bow tie. When the track flares, it moves closer to the fingers and farther from the thumb so this causes your ball to roll over the fingers.

You should ONLY drill a pin in the flare safe zone referenced in our documentation. That zone is above a line from your positive axis point to your ring finger. Anything below that line raises your roll especially in asymmetrical bowling products."

According to a MO post he said that's more related to how older balls tracked, That with today's more dynamic cores the bowtie locations have been altered somewhat. He said:
"On modern balls the top bowtie is usually about an 1 1/2" to 3" above the line[/color](on the track) from the PAP through the pin. The bowtie (location?)is far less defined than it used to be because of the stronger dynamics of modern cores."

Reading Lane Conditions Front to Back

"Reading a lane condition front to back is identifying where the ball begins to lose speed. If a ball loses a lot of speed in the first 20 feet, you can expect less hook power or a smoother backend motion down lane. If the ball doesn’t lose speed in the front or middle sections of the lane, you can expect more hook down lane creating a stronger back-end reaction towards the pins."

The Flat Spot

The flat spot is the area in the red circle in which the blue ball track flattens and the delivery happens.


(English cc/subtitles available for the text shown in the video)

This is a translation from German of the text that goes with the video:
Players who are able to make your delivery with a flat spot have the advantage that you can benefit from a margin of error in the delivery. It has also been shown that these players also have a higher consistency of the delivery.

The following elements are necessary in order to be able to produce such a flat ball track (or flat spot)
- the inclination of the upper body during the slide step should have a constant angle as far as possible
- the level (height) on which the hip axis moves during the slide step should remain as equal as possible until delivery
- to support this flat ball track, the knee should also continue the forward movement after which the foot has completed the sliding movement.

You also might want to read this:
Don’t Underestimate the Flat Spot!
http://tamerbowling.com/dont-underes...the-flat-spot/

Excerpt:
"So it is important to remember that the armswing should not be a simple semi-circle, i.e., it doesn’t just go back shoulder height and come forward shoulder height. At some point when you release the ball at the bottom of the swing, there actually has to be a slight forward projection which creates this “flat spot” effect."