A1
1-4
Neighbor right-hand turn ½, next neighbor left-hand (turn all the way)
5-8
(Original nNeighbor right-hand turn ½, next neighbor left-hand (turn all the way)
A2
1-4
1s star right (below, original 2s)
5-8
1s star left (above, previous 2s
B1
1-2
(Original) 1st corners change
3-4
(Original) 2nd corners change
B2
1-4
1s cross & cast while 2s meet & lead up
5-8
1s half-figure eight up while 2s cast down & lead back up (to meet new 1s)