Using a mouse / pad break the flow, makes you move your hands out of the keyboard inducing delay (positing on the mouse, repositioning on the keyboard). Usually

Using a mouse / pad break the flow, makes you move your hands out of the keyboard inducing delay (positing on the mouse, repositioning on the keyboard). Usually point and click takes more time than a shortcut. Makes you more prone to Carpal Tunnel Syndrome. For me it's mostly about comfort than productivity, productivity is a nice side effect. As a coder I don't spend most of my time typing code but thinking and reading so pure typing speed is non relevant for productivity.