Clarification 2/2007 is at odds with the directives we have (in my neck of the woods anyway) in relation to when substitutions are allowed to take place. We have always been told that no subs at PKs as the ball is not dead. Also, if a PK is awarded and the non-offending team decide to kick at goal, we don't allow water carriers to run onto the field handing out water bottles.
If a PK is awarded and we have to stop play for an injury which is consistent with part of 2/2007, ".....or when the referee has blown the whistle to indicate a stoppage in play, ......." .
We do not allow a sub (rolling subs) to take that kick at goal, either PK or conversion, if he has taken the field immediately after a try or the awarding of a PK. So why should we allow a normal substitute take the kick where rolling subs are not in place? The laws are inconsistent on this IMO.
I need to seek clarification on the ball being "dead" issue from the ARU in relation to allowing substitutions. As for the substitute being/not being allowed to take a kick at goal as soon as he takes the field, this is not an issue for me on Fridays and Saturdays as all of my level games involve Rolling Substitutions.