Originally Posted by
TimothyH
Most importantly however, the new levers are progressive. They move lots of fluid fast when first pressed to bring the pads into contact with the rotors quickly. They then fluid volume for better modulation. This is one of the reasons I want to try them.
That's called servo wave by Shimano. Something that the current DA and Ultegra levers use as well.
https://bike.shimano.com/en-US/techn...ve-action.html