1) No bracha is said over hallel. Anyone who begins saying the bracha for hallel is told to sit down and stop being such a frummak. (?????? ???? ??????)
2) We do not read a haftara. As Rav Soloveichik said when told about the practice “Nu, people have to get to work.” Anyone who even mentions using the haftara of Od Hayom is to be tied up in the main NK shul in London with the word Tziyoyni written on his forehead.
3) It is permitted to add the rabbanut liturgy at maariv as long as:
a- the baal tefilla can sing.
b- I am not there.
Anything else?