We got a last minute stump grinding job at a local church here in Greenville, South Carolina. It was a rather big task because the tree stumps were pretty large which means there was lots of mulch. Sunday was Easter so the church needed everything to look as perfect as possible. Each stump had significant roots stretching at least 4 feet in either direction. I spent half an hour just spraying painting roots to make sure I didn't miss any. I finished the job around 8:00 pm.