BJ Duties - Muff etc

[KS_Blue]

Question 1:
Once the ball rolls into the endzone on a kick, the ball is dead and a touchback. It is not necessary to bag the spot of touching by R but my crew does, just to let everyone know that R touched the ball.

Question 2:
If it's beyond the NZ, R is the only one who can advance it, but K can recover. Once K gains possession, the ball is dead.

Question 3:
Muffs can be advanced by R but not K. Once K gains possession, the ball is dead.

Question 4:
Not sure, because we don't use different colors.