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General Category => Drilling & Layouts => Topic started by: bowlingnut18 on October 17, 2011, 12:05:07 PM

Title: Longer span layout question
Post by: bowlingnut18 on October 17, 2011, 12:05:07 PM
So I am closing in on the perfect span for my hand, got my pitches close to where I want them and my span is almost set, going to drill a test ball 1/8th longer this week to see how it feels. Currently my span is 5 7/8 middle 5 3/4 ring with me bumping them soon to see how I like it since I still have a bit of room and so far bumping my span 3 weeks ago has provided some better scoring
 
Wondering if spans in the 6" range need any special considerations when drilling either symmetrical or asymmetrical balls. I'm doing well with a 505A drilled stacked pin about 4 inches above my ring finger and 1 1/2 inches to the right of fingers, still experimenting with everything else so I figured I'd ask about this consideration as well now.
 
Thanks in advance 
 


Title: Re: Longer span layout question
Post by: JohnP on October 18, 2011, 09:27:53 AM
Are those spans measured gripping surface to gripping surface?  --  JohnP


Title: Re: Longer span layout question
Post by: bowlingnut18 on October 18, 2011, 09:37:32 AM
cut to cut (bottom of finger cut to top of thumb cut)

Title: Re: Longer span layout question
Post by: Cobalt Bomb on October 18, 2011, 09:58:53 AM
That's a big hand! The only thing I can think of would be static weights for legality. When using a pin up drilling, try to get at least a 3-4" pin (preferably longer) so that the fingerweight will be legal without drilling the fingers real deep or using a high balance hole.


Title: Re: Longer span layout question
Post by: johns811 on October 18, 2011, 10:05:52 AM
Span that big, you don't need holes. LOL. Geez.


Title: Re: Longer span layout question
Post by: bowlingnut18 on October 18, 2011, 10:19:06 AM
Thanks for the input, yes my hand is on the larger size, wrist (beginning of palm at the crease) to finger tip length is 9 1/4" so I have some mitts. My thumb flexibility is crazy, I can lay my thumb against the pad of my palm and get around a 30* angle, my whole hand flexibility is the highest any driller has ever seen in my area.

Title: Re: Longer span layout question
Post by: livespive on October 18, 2011, 11:15:50 AM
Yeah your hand sounds like mine 9" using your measuring technique.  I always use 3-4 pin 3 oz tw,

except for when I am doing a ball 315.

 

Let me ask you this, how far are you inserting your thumb?


Eric T. Spivey, P.E.
 Visionary Test Staff Member, and originator of The Livespive Leverage 3:15° drill

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Title: Re: Longer span layout question
Post by: bowlingnut18 on October 18, 2011, 11:27:50 AM
Thumb is all the way into the pad, I tend to keep most of my whole hand on the ball all the way thru the shot, so my thumb is fully inserted into the ball.

Title: Re: Longer span layout question
Post by: livespive on October 18, 2011, 11:36:24 AM
Yeah, if you are using inserts for the fingers 3-4" with 3oz tw should work.

Most of my symetrical balls never needed holes, a few of the asyms did.


Eric T. Spivey, P.E.
 Visionary Test Staff Member, and originator of The Livespive Leverage 3:15° drill

http://www.visionarybowling.com
http://www.maysbowlingandbilliards.com
Ball Reviews FAQ
BR.com search hack:  http://www.bowling-info.com/Search.html

Old Bowlingballreview.com site:
http://www.bowlingballvault.com

Mario's Secrects:
http://bowlingknowledge.com/tips.html

RIP THONGPRINCESS AND SAWBONES
Title: Re: Longer span layout question
Post by: bullred on October 18, 2011, 12:32:43 PM
What is your thumb reverse measurement.    I can make a 1" difference in span with just the thumb reverse setting????