A1: Ones lead through the twos, cast back to place. Men lead through the women, cast back to place.
A2: Twos lead through the ones, cast back to place. Women lead through the men, cast back to place.
B1: 1st corners set moving forward; turn single back to place. 2nd corners same.
B2: Circle 4 half-way; fall back with neighbour. Come forward setting; cross over to own side.