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andyrm
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Post subject: Sigma Tour ordered!  Posted: Tue Dec 13, 2011 12:03 pm |
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Joined: Wed Dec 01, 2010 4:45 pm
Posts: 165
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OK, I've ordered my 15# Sigma Tour 3-4" pin 3oz top weight. This will be my benchmark ball. What is a good base drilling based on my stats below? Thanks in advance!!!
_________________
SR2: HG300 HS692(Ret)
Recon RX1 Silver 245 645
Primal TV4 287 736
Sigma Tour 298 725
Primal Scream 265 694 55x40@4.5
PAP 4 1/4">5/8 up
Rev=300
Release speed 16.1 MPH
Axis Rotation 90*
Axis Tilt 10*
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plamormick
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Post subject: Re: Sigma Tour ordered! Posted: Tue Dec 13, 2011 1:21 pm |
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Joined: Wed Sep 22, 2010 12:14 am
Posts: 808
Location: Iowa Falls, IA
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Really going to depend on your tilt-- trace your initial track (oil line). Then, measure the diameter of the circle you created by tracing your initial track. Please report that diameter measurement back to us.
Tilt is an important ingredient in determining the strength of your roll, or how quickly your delivered ball will burn off the rotational energy you apply to the ball. Once that number is figured, the layout will become easier to dial in with more certainty.
_________________
Lane 13 Pro Shop, Iowa Falls ............. Shock * Recon * Tribal
Pla-Mor Bowl ........................ GT1 * Covert Revolt * Tribal Fire
Vise Amateur Staff ......................... Octane * Primal Rage * Forza
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andyrm
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Post subject: Re: Sigma Tour ordered! Posted: Wed Dec 14, 2011 5:23 pm |
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Joined: Wed Dec 01, 2010 4:45 pm
Posts: 165
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Looks like my tilt is 17*
_________________
SR2: HG300 HS692(Ret)
Recon RX1 Silver 245 645
Primal TV4 287 736
Sigma Tour 298 725
Primal Scream 265 694 55x40@4.5
PAP 4 1/4">5/8 up
Rev=300
Release speed 16.1 MPH
Axis Rotation 90*
Axis Tilt 10*
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andyrm
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Post subject: Re: Sigma Tour ordered! Posted: Thu Dec 15, 2011 3:01 pm |
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Joined: Wed Dec 01, 2010 4:45 pm
Posts: 165
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OK... I measured out at about 12", which according to the table on bowlingchat.net, puts me at 10*. So what kind of drilling will give a controllable benchmark ball?
Thanks in advance!
_________________
SR2: HG300 HS692(Ret)
Recon RX1 Silver 245 645
Primal TV4 287 736
Sigma Tour 298 725
Primal Scream 265 694 55x40@4.5
PAP 4 1/4">5/8 up
Rev=300
Release speed 16.1 MPH
Axis Rotation 90*
Axis Tilt 10*
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JustinWi
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Post subject: Re: Sigma Tour ordered! Posted: Thu Dec 15, 2011 3:10 pm |
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Joined: Thu Aug 27, 2009 10:43 pm
Posts: 1703
Location: Rochester NY
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50x45@5" hole 2" down the VAL. You may want to lightly scuff with 1k Abralon to combat the 90* of rotation. High rotation low tilt players are some of the toughest to match with resin equipment.
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andyrm
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Post subject: Re: Sigma Tour ordered! Posted: Thu Dec 15, 2011 3:48 pm |
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Joined: Wed Dec 01, 2010 4:45 pm
Posts: 165
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Is there a particular size and depth of the hole on the VAL? What if my measurement is off by .5" to an inch either way? I don't have an armadillo or any such tool, so I would like to verify with my pro shop guy before I get it drilled. Thanks so much for your help!
_________________
SR2: HG300 HS692(Ret)
Recon RX1 Silver 245 645
Primal TV4 287 736
Sigma Tour 298 725
Primal Scream 265 694 55x40@4.5
PAP 4 1/4">5/8 up
Rev=300
Release speed 16.1 MPH
Axis Rotation 90*
Axis Tilt 10*
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JustinWi
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Post subject: Re: Sigma Tour ordered! Posted: Thu Dec 15, 2011 3:53 pm |
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Joined: Thu Aug 27, 2009 10:43 pm
Posts: 1703
Location: Rochester NY
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Start smaller and increase the size and depth of the hole to increase its impact on the ball motion. 7/8 2" deep to start.
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andyrm
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Post subject: Re: Sigma Tour ordered! Posted: Thu Dec 15, 2011 4:12 pm |
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Joined: Wed Dec 01, 2010 4:45 pm
Posts: 165
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Thanks
_________________
SR2: HG300 HS692(Ret)
Recon RX1 Silver 245 645
Primal TV4 287 736
Sigma Tour 298 725
Primal Scream 265 694 55x40@4.5
PAP 4 1/4">5/8 up
Rev=300
Release speed 16.1 MPH
Axis Rotation 90*
Axis Tilt 10*
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andyrm
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Post subject: Re: Sigma Tour ordered! Posted: Thu Dec 15, 2011 4:30 pm |
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Joined: Wed Dec 01, 2010 4:45 pm
Posts: 165
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Does that mean that 50x45@5" hole 2" down the VAL is valid even if my tilt changes up to 1" either direction?
_________________
SR2: HG300 HS692(Ret)
Recon RX1 Silver 245 645
Primal TV4 287 736
Sigma Tour 298 725
Primal Scream 265 694 55x40@4.5
PAP 4 1/4">5/8 up
Rev=300
Release speed 16.1 MPH
Axis Rotation 90*
Axis Tilt 10*
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andyrm
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Post subject: Re: Sigma Tour ordered! Posted: Tue Dec 20, 2011 10:03 am |
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Joined: Wed Dec 01, 2010 4:45 pm
Posts: 165
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With Justin's layout, I was only able to use the ST in the first game as the lanes were pretty dry. Probably shouldn't even have used it then, but I had NBS. Shot a 204... That was with missing 2 10 pins, one of them being in the 9th. Had to switch to my Silver Recon the rest of the way. 2nd game 188, leaving a 7 from a 1-2-4-7 cover attempt and a 6-7-10 split. Third game 224, missed a 10 pin and a 9 pin cover. I can't wait to get the ST out on some oil!
_________________
SR2: HG300 HS692(Ret)
Recon RX1 Silver 245 645
Primal TV4 287 736
Sigma Tour 298 725
Primal Scream 265 694 55x40@4.5
PAP 4 1/4">5/8 up
Rev=300
Release speed 16.1 MPH
Axis Rotation 90*
Axis Tilt 10*
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