Kerning fonts is a tiring activity that can put a big stress on your extremities. Following the advice given at Robothon conference by Andy Clymer, we are experimenting using MetricsMachine and an USB’s game pad with the help of the universal driver USB Overdrive. It works like a charm. We specially like to have a handy way to flip the selected pair when checking kerning symmetry. The next kerning work at Retype is much probably going to be performed with this method.