Re Walsh offside. If the players are in front of the kicker then they have to remain 10m away from the player catching it or the bounce of the ball. There were a good few saints players within that 10m.
You can ground a try with the torso.
Very harsh for Peyroux's try, but by the letter of the law there was no conclusive shot of the ball being grounded.
Saints not penalised once for have players in front of the ref in the defensive line, time and time again.