if i have four season passes do each one get a bring a friend day pass and can that one friend use one on first day and a second from a different season pass the 2nd day?

Bring a friend pass can not be used on Saturdays. We found that out last Saturday!

Yes. You bring all four on same day or one on four different days. You just go to the gate with your pass and they will scan your pass for you and again for your friend. Then the other friends you'll use one of the other passes. But they have to be used by June 30th, 2018. Or you will lose them

So basically, one person can use the pass on 4 different times or 4 people can use the one time... That's if you have paid for 4 season passes. And it all expires June 30 but includes all the concerts.

Yes

Yes until June 30th. Then the free passes expire.

I believe yes until after June 30th unless you find out differently