BJ Duties - Muff etc

[MikeyS]

1st BJ game have a couple of questions:

Question 1
On a Punt R muff's (bobbles) it at his own 5, it rolls in end zone which R recovers.
1) Bag it at the 5, if so does it matter what color (we have a white and blue)?
2) Blow it dead when R recover (they can't advance muff)?
3) Safety?

Question 2
Is it still a muff if it just bounces of any R beyond the NZ, can R or K advance it then?

Question 2
Muffs can not be advanced by either K or R if past the neutral zone?

Question 3
Bag all Punts (again does color matter)?

Thanks....