And they win BEER!!! :thumblef: Love curling. The brooming actually melts the pebbles, allowing the rock to get some grip, and curl. Not sure if the pebbles slow down the rocks, but could be.
For a great lesson in Curling, watch "Men with brooms". Very funny movie, and quite accurate in it's depiction of us Canadians.(at least the ones from Lakeview:D)