Revolutionary Not Evolutionary
Remember what Netflix did to Blockbuster stores? What about how quickly the cell phone virtually eliminated the payphone?
Sometimes technology seems to change literally overnight. Rapid change only happens because something was built that made the existing model obsolete.
This is what might be happening to the putter as you know it.
In golf, there is evolutionary technology and revolutionary.
Evnroll is the revolutionary kind.
Any golfer without this in their bag after today is, playing inferior technology. Evnroll should make all other designs obsolete.