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PISAputter dramatically reducing the skid distance

PISA: the world's 1st Negative Loft puttesr certified by USGA. Blade, Mallet, Mid MalletT Type

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PISAputter dramatically reducing the skid distance

PISAputter dramatically reducing the skid distance

PISAputter dramatically reducing the skid distance

PISAputter dramatically reducing the skid distance

PISAputter dramatically reducing the skid distance

PISA: the world's 1st Negative Loft puttesr certified by USGA. Blade, Mallet, Mid MalletT Type

PISA: the world's 1st Negative Loft puttesr certified by USGA. Blade, Mallet, Mid MalletT Type

PISA: the world's 1st Negative Loft puttesr certified by USGA. Blade, Mallet, Mid MalletT Type

PISA: the world's 1st Negative Loft puttesr certified by USGA. Blade, Mallet, Mid MalletT Type

PISA INC
PISA INC
PISA INC
PISA INC
2 Campaigns |
Seoul, Korea, Republic of
$4,210 USD by 19 backers
$3,780 USD by 17 backers on Aug 7, 2023
Highlights
Mountain Filled 2 Projects Mountain Filled 2 Projects

PISA: Negative Loft for better putting accuracy

 

 

 

 

 

 

 

When striking a ball with a conventional putter, it bounces or skids along the ground for first several inches instead of rolling immediately, which is called a “ skid zone”. Skid zone covers the initial 15 to 18% of the total traveling distance and causes a distortion in the direction of the ball, reducing the distance as a result.

 

The ball enters the skid zone because the stroke creates a friction between the ground and the striking surface in contact with the ball. While the ground friction helps to create a pure roll, the friction from the putter’s striking surface interrupts the rotation of the ball. Due to two contrary frictions occurring simultaneously on a single strike, the ball in the skid zone cannot rotate immediately and often bounces to the wrong direction.

 

 

The conventional putters are equipped with a positive loft angle of around 3 to 5 degrees to solve this issue. This will neutralize and avoid both frictions mentioned but makes it difficult to create a pure roll in the initial stage of a stroke.

 

 

 

USGA uses the stimpmeter as the standard units of measurement for green speed. Because stimpmeter measures by rolling rather than hitting, standard value of green speed can be consistently obtained as there is no skid zone occurring.

 

 

 

 

 "Considering the ball can be moved accurately on the ground by rolling rather than pushing or hitting, the most ideal putter would be the one that immediately creates a natural rotation of the ball to minimize skidding when stroke."

 

 

From this idea, we’ve managed to create an ideal putter with maximum friction on the ground and minimum friction from the striking surface, allowing the ball to roll immediately after the stroke. Introducing PISA, the new putter that eliminates the impact of the initial skid zone.

As a result, we’ve produced an ideal putter that creates a consistent roll with maximum friction on the ground and minimum friction on the putter’s striking surface.

Instead of upgrading the existing putters with a positive angle, PISA transformed the entire concept of the putter and created a brand-new product with a negative angle instead. The negative loft causes the ball to roll immediately upon striking as it’s made to strike the top of the ball.

The ball with a pure roll from the beginning will minimize the skid zone and improve the accuracy of the ball's direction and distance, resulting in consistent putting performance.

 

Negative angled loft may create friction on the striking surface that prevents the ball’s rotation and cause the ball to unexpectedly bounce towards the ground due to the increased repulsion of the ground. To overcome this challenge, PISA applied Teflon and Turcite, the advanced low-friction materials, to the putter’s striking surface.

After testing the negative loft with low-friction materials manufactured by PISA, we confirmed that skid zone has significantly reduced immediately after the strike.

The high-tech low-friction materials acted as a lubricant and neutralized friction that prevents the roll of the striking surface, successfully executing the initial rotational performance of 180rpm.

 

 

 

Testing the performance of negative loft and its initial rotation rate through the Quintic Ball Roll System Test, which is a state-of-the-art system for putting analysis, we were able to observe that PISA provides an immediate pure roll upon striking while the regular putter cannot.

 

 

As shown on the table below, PISA performs 5 to 11 times superior to the regular putter in initial rotation by reducing the skid zone and improving the accuracy of the ball's direction and distance consistently.

PISA is a product officially certified by the American Golf Association, which means you can officially use it in any professional tournaments. Bring PISA for your important events to minimize the number of strokes with stable putting

 

 

 

 

 

 

 

“Why does a putted ball sometimes go where it is not intended?”, the journey of PISA began from this question. Studying the correlation between the initial rotational inertia of the ball, and the direction of force and the ground friction, we’ve conducted endless tests and developments in 2016 solely to achieve the goal of “improved initial rotational performance” of putting. Testing with the most high-tech measuring equipment in the world, such as a high-speed camera with a performance of 20,000 fps, Quintic – the best putting launch monitor - and the innovative device that strikes the variable loft precisely, we have received reliable results on the performance of PISA. We are very excited to introduce our USGA certified PISA BL 180RPM and ML 180RPM - the world’s first commercialized negative loft putter – to the world through our very first campaign here. We shall continue to create and introduce more products with improved quality and performance.

 

 

PISA INC. is a company founded in New York that has been looking for the ways to perform a more successful putting. We began our research on a putter in 2016, only with speculations at the time with the idea that the ball’s initial rotational performance after the strike may have a huge effect on its direction and distance. By 2020, we were able to receive reliable and satisfying experimental results by creating the world’s first negative angled loft and overcoming the surface friction to enable a pure roll. What’s behind PISA’s name and its corporate identity? PISA was inspired by Galileo’s famous gravitational acceleration experiment at the Leaning Tower of PISA. Our philosophy in development is to break away from the fiction of known or conventional wisdom and present innovative technology through scientific proof.

PISA INC. is a company founded in New York that has been looking for the ways to perform a more successful putting. We began our research on a putter in 2016, only with speculations at the time with the idea that the ball’s initial rotational performance after the strike may have a huge effect on its direction and distance. By 2020, we were able to receive reliable and satisfying experimental results by creating the world’s first negative angled loft and overcoming the surface friction to enable a pure roll. What’s behind PISA’s name and its corporate identity? PISA was inspired by Galileo’s famous gravitational acceleration experiment at the Leaning Tower of PISA. Our philosophy in development is to break away from the fiction of known or conventional wisdom and present innovative technology through scientific proof.

 

Why Indiegogo?

For successful and accurate putting, PISA developed a putter with improved initial rotation performance by focusing on the loft and friction of the putter and we would like to share the results with everyone on Indiegogo. We started this Indiegogo campaign to help backers enjoy and achieve the new values and experiences that we have prepared even before PISA’s foundation and spread to the world. We want to show our new vision and the results of our effort to our backers before anyone else. To provide the backers – who always look forward to experience something new and achieve value, we will manufacture our PISA Teflon blade/mallet type putter to their perfection.

 

WARRANTY

If the product is proven to be faulty upon manufacturing, free After-Sales-Service and exchange is available within 1 year.

 

RELIABILITY & FAST DELIVERY

PISA completed producing the prototype putter long ago. Through hundreds of tests, we are in the stage just before the producing finished products. After finishing the campaign successfully, production will begin in the same month. Additionally, we have secured a courier company to make as fast and accurate shipping as possible. We will do our best to make the shipping safest and fastest.

 

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Choose your Perk

Blade Type Super Early Bird

Blade Type Super Early Bird

$210 USD $350 USD (40% off)
$210 | Save $140 (Will retail for $350)
Included Items
  • PISA BL 180 RPM
Estimated Shipping
August 2023
5 out of 100 of claimed
Ships worldwide.
Mid Mallet  Super Early Bird

Mid Mallet Super Early Bird

$210 USD $350 USD (40% off)
$210 | Save $140 (Will retail for $350)
Included Items
  • PISA MD 180 RPM
Estimated Shipping
August 2023
6 out of 100 of claimed
Ships worldwide.
Mallet Type Super Early Bird

Mallet Type Super Early Bird

$210 USD $350 USD (40% off)
$210 | Save $140 (Will retail for $350)
Included Items
  • PISA ML 180 RPM
Estimated Shipping
August 2023
8 out of 100 of claimed
Ships worldwide.
Blade Type Indiegogo Special

Blade Type Indiegogo Special

$245 USD $350 USD (30% off)
$245 | Save $105 (Will retail for $350)
Included Items
  • PISA BL 180 RPM
Estimated Shipping
August 2023
0 out of 400 of claimed
Ships worldwide.
Mid Mallet Indiegogo Special

Mid Mallet Indiegogo Special

$245 USD $350 USD (30% off)
$245 | Save $105 (Will retail for $350)
Included Items
  • PISA MD 180 RPM
Estimated Shipping
August 2023
0 out of 400 of claimed
Ships worldwide.
Mallet Type Indiegogo Special

Mallet Type Indiegogo Special

$245 USD $350 USD (30% off)
$245 | Save $105 (Will retail for $350)
Included Items
  • PISA ML 180 RPM
Estimated Shipping
August 2023
0 out of 400 of claimed
Ships worldwide.
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