swan dog
Bronze Whaler
yes
have the same system as the NFL & maybe let the coaches have 3 Challenges.
the expensive option is to put sensors in-goal and make the ball out of something special, or sensors/some kind of signal in it
that way the sensors would detect when the ball contacts the ingoal area
pretty sure this would be possible, but expensive
this way you could also have a lot of automated cameras which follow the ball
the ref would then just need to rule on double movements and anything in the leadup to the try