Joris wrote:on September 19, 2023 4:35pm
Butterfly Feint Long 1.3mm
Joris,
For a pips rubber to be firctionless , the top ( and or sides) of the pips should be smooth or like glassy
Think about a frictionless anti. The surface is slick. The same concept applies to frictionless pips.
Conversely when the top & sides of a pip are rough , it is a high friction long pips rubber.
You should be able to see on You Tube or elsewhere, lots of pictures frictionless ( such as Butterflu Resilon) long pips & high friction long pips (such as Feint Long)
High friction pips will actually have sort of tiny pips on top of each individual pip . You can see this with even a naked eye or using a magifying glass
It is possible to simulate frictionless behavior for long pips such as using proper material or making them more flexible or spread apart etc.
But usually the dominant pip design parameter that makes it a frictionless pip is the top of the pip & sides