In both codes, when a try is scored, the scoring team gets to attempt a "conversion", which is a kick at goal to convert the try from one set of points into another larger set of points. The kick is taken at any point on the field of play in line with the point that the ball was grounded for the try, and parallel to the touch-lines. If successful, additional points are scored. For the conversion to be successful, the ball must pass over the crossbar and between the uprights. In both codes, the conversion may be attempted as either a place kick (from the ground) or a drop kick. Most players will nevertheless opt for a place kick, this being generally regarded as the easier skill. Note, however, that in both rugby sevens (usually, but not always, played under union rules) and rugby league nines, conversions may only take place as drop kicks. In rugby league, the game clock continues during preparation and execution of a conversion, with the institution of a 25-second shot clock at certain tournaments from the moment the try is awarded by the referee, within which time the conversion kick must be taken, hence a team may decline a conversion attempt if recommencing play as quickly as possible is advantageous to them.