BallReviews

General Category => Miscellaneous => Topic started by: thewhiz on October 09, 2016, 10:22:43 PM

Title: Asym vs. Sym
Post by: thewhiz on October 09, 2016, 10:22:43 PM
Was wondering what the main difference was between Asymmetrical and Symmetrical?  Also an example of when to use each one?
Title: Re: Asym vs. Sym
Post by: lilpossum1 on October 09, 2016, 10:29:47 PM
I'm curious also considering people say all balls are asymmetric when drilled
Title: Re: Asym vs. Sym
Post by: CoorZero on October 09, 2016, 10:46:27 PM
I'm curious also considering people say all balls are asymmetric when drilled

They are, but to the best of my understanding asymmetrical bowling balls still have a higher degree of asymmetry after drilling compared to symmetrical balls after drilling. There's still a significant amount of difference between the two. Like a ball with 0 mass bias doesn't simply equate to one with 0.020 mass bias after each are drilled. They both gain more asymmetry, and the asymmetrical is still as far from the symmetrical as it was when undrilled (assuming similar drillings of course).

Sorry if the tone is antagonistic. I've heard this a lot and it's a bit of a pet peeve of mine.  ;D
Title: Re: Asym vs. Sym
Post by: MI 2 AZ on October 10, 2016, 02:31:14 AM
From BTM, https://www.bowlingthismonth.com/bowling-balls/

Additionally, some layouts behave differently on highly asymmetrical balls than they do on symmetrical balls. For example, a 6″ pin-to-PAP distance layout on a symmetrical ball will typically result in a very low-flaring ball. In a strong asymmetrical, however, a 6″ pin-to-PAP distance layout might result in a very high-flaring ball, depending on the positioning of the high RG axis.

You can see that in the diagrams on page 5 of this link:
http://wiki.bowlingchat.net/wiki/images/c/cd/DualAngle.pdf
Title: Re: Asym vs. Sym
Post by: Channelsurfer on October 10, 2016, 06:57:20 AM
Main differences are drillings and the hook zone on an asymmetrical is shorter than a symmetrical.
Title: Re: Asym vs. Sym
Post by: lilpossum1 on October 10, 2016, 01:43:30 PM
Ahhh that explained everything for me! Thank you!