Our centre on lane 4 is often leaving the 7 10, about 5 times in the last 2 weeks.
Is there a issue here? pins off their spot?
constant 7 10 leave
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constant 7 10 leave
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Re: constant 7 10 leave
Are you playing the same line on lane #3?ballspoint wrote:Our centre on lane 4 is often leaving the 7 10, about 5 times in the last 2 weeks.
Is there a issue here? pins off their spot?
I would tend to believe there is a topography issue causing the ball to enter the pocket late.
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Right Handed
PAP 4.75" up 1/2"
45* rotation
12* tilt
330 rev rate
16 mph off hand
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Re: constant 7 10 leave
Its happening to many bowlers, so different lines, angles, balls, speeds.
R/H, 20 mph off hand. 250 Revs.
11* Tilt. 70* Rotation. 5 5/8 x 1"up
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Re: constant 7 10 leave
Most probably topography: part of the lane on one side is most likely tilted away from the headpin causing the ball the fall away from the pocket. My guess is that lefties on the same pair rarely have the same problem.
Re: constant 7 10 leave
you are likely correct on it being topography, but not how you think, imho. More probable, the case would be that the lane tilts downhill, as the ball approaches the pocket, and speeding up, missing the sweet spot.RobMautner wrote:Most probably topography: part of the lane on one side is most likely tilted away from the headpin causing the ball the fall away from the pocket. My guess is that lefties on the same pair rarely have the same problem.
The ball rolling uphill, would slow the ball slightly, helping most bowlers.
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Re: constant 7 10 leave
If you look at Kegel lane maps, you'll see that the great majority of topographic features are areas that slant either toward the pocket or away from it. BTW, what's "the sweet spot"?georgeh wrote:you are likely correct on it being topography, but not how you think, imho. More probable, the case would be that the lane tilts downhill, as the ball approaches the pocket, and speeding up, missing the sweet spot.
The ball rolling uphill, would slow the ball slightly, helping most bowlers.
Re: constant 7 10 leave
I've seen Kegel's website and aware of the mapping. I also read an article about the changes of lane topography and how it affected some of the best bowlers at Kegel.RobMautner wrote:
If you look at Kegel lane maps, you'll see that the great majority of topographic features are areas that slant either toward the pocket or away from it. BTW, what's "the sweet spot"?
I'm also aware that many lanes that required resurfacing prior to synthetics, had lanes dished (Langlo) toward the pocket to help league bowlers before reactives. I also have watched several installations of synthetics over the dished lanes and the dished centered wasn't completely planed leveled before the lane beds were installed. I can assume that knowing wood reacts to moisture that any lane installation that begins not perfectly level will be prone to inconsistencies. I believe in that article there was mention of uphill vs downhill reaction relating to speed.
sweet spot; the inexact science in finding the pocket area that most anything carries