> which is a really bad idea on many keyboards, with cap angle differing by row Even when keycaps have uniform profile, the 'F' and 'J' keycaps will often have

> which is a really bad idea on many keyboards, with cap angle differing by row Even when keycaps have uniform profile, the 'F' and 'J' keycaps will often have bumps on them. These are the 'homing keys', so that it's easier for the fingers to return to home row.