Elecom HUGE vs ProtoArc EM03 This is a video I prepared that compares the Elecom HUGE and the ProtoArc EM03 trackballs. In a hunt for a fresh pointing device, I decided to get a new trackball to alleviate some of the discomfort I commonly experience after prolonged mouse use. After some research and poking around the internet, I focused my attention on two popular devices that are geared toward users with large hands, are designed for index, middle finger, and ring finger pointer navigation (not the thumb), and are often sold at a reduced price ($30-$60). Read more at: