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One Best Delivery Speed for Touch from Physics

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Uploaded by on Nov 16, 2007

Geoff Mangum explains the physics of ball-hole interaction for optimal capture delivery speed of ball at the front lip, with David orr at Tot Hill Farm Golf Club, Asheboro NC.

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Uploader Comments (geoffmangum)

  • This is really interesting. All I've heard is from Pelz 17" past the cup is ideal due to the footprints around the cut.

    But I agree with Geoff that it's more positive to think about where in the cup do I want to ball to hit, bottom? back bottom?

  • Pelz' 1977 data DISPROVES his later claims about 17" past the hole: Golf Digest July 1977, pages 52-55. His later "claims" about 17" never mentions this 1977 article or share his data proving it, because he has none.

    Pelz's science only proved what everyone already knew: the go-by distance does depend on grass type and condition.

    Others who have tried to duplicate his research to check it conclude that his claims cannot be accurate.

    Geoff Mangum

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  • Awesome video. Why didn't I meet you 30 years ago!

  • lol...who IS this dude?? lol

  • @gregrutz

    Take away the break means dead accuracy since it means you choose to narrow the hole by putting too many revolutions per sec

  • Good video, but the stuff going on in the background is so distracting

  • What about Mr. 'take away the break' ?

  • Geoff, There must be different optimal speed of ball/ distance past the hole dependant on the speed stimp meter reading on the green. Am I right I thinking on super fast greens that the optimal distance past the hole would be much lower than 17" and around 5"?

  • Common sense??

  • Geoff this video is incredible. My putting has been terrible of late but this video has instilled me with confidence again.

  • thanks for the tips

  • thank you for your video, it really helped me std i have a test tomorrow

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