I use the rudder a LOT when flying my gliders. Just as full scale pilots use the rudder to coordinate the turn, so glider pilots do the same. Since gliders are assumed to be flying without motor, making the smoothest, most efficent turns is vital to energy conservation. I often lead with the rudder as I go into a thermal turn.

And, ofcourse the rudder can be vital to accurate landings when fying in TD contests where the goal is to put the nose of the plane on the 100 point mark, about 1 square inch.

The rudder is your friend. Don't ignore it.

USING THE RUDDER IN THERMAL FLYING
http://www.polecataero.com/handlaunc...thermal-flying