Speed meets stamina
Around the 15 to 20 second mark most people feel their forearm burn, so this test shows the speed you can really sustain. Start at about 90%, hold it through the middle and switch fingers if you need to.
Good 30 second scores
Most people get 150 to 210 clicks (5 to 7 CPS), a little below their 10 second score. About 225 clicks is fast and 275 or more is excellent. Rest at least a minute between attempts.