These are more rule clarifications I have, but what's the rule on taking out the 9? When can a 9 ruck and when are they protected? and can anyone play this "9" role and be protected? Is it just if they go to pass the ball you have to let them do it..
Also, I really really really don't see the point of penalising props/scrums for being dominated. It's such a bizarre part of the game, if you are illegally stopping your opposition scrum getting scrum dominance then sure, be penalised, go to the bin. But if you're on roller skates already heading backwards at a rate of knots, why be penalised just because you're shit.
Imagine if you get penalised everytime you got bumped off in the tackle and on the third, you got carded.