One day soon I'm gonna have to learn (flatpick) crosspicking. As I get it, it's like the rolls of bluegrass banjo. so...

2 bar forward roll
rhythm: 1 - 2 - 3 - 1 - 2 - 3 - 1 - 2
pick: dn- dn- up- dn- dn- up- dn- up-
Did I get this right? This means that there are tons of rolls to learn like three finger banjo, yes?