Twirly Corners by Chris Page. Leads are neighbors, not partners. I have the leads be the lower couple if nobody is out after the slice left, so they can turn with the two who are out at the top (which may be how it was originally written, but my impression is not).
Ups and Downs
By Russell Owen
Improper
A1-1
Start facing down, neighbor robin on the right.
Active couple is on the ends of the lines of 4; 1s are active the first time.
(8) Down the hall 4 in line, 2s between the 1s, bend the line
(8) Middles (2s) gate the ends once around (basically a continuation of bending the line)
A1-2
OR if one couple is out at the top, 2s are active:
(8) Up the hall 4 in line, 1s between the 2s, bend the line
(8) Middles (1s) gate the ends once around
A2
(16) Active couple turn contra corners
Note: the out couple can join; preferably don't cross over until after contra corners
B1
(16) Actives balance and swing
End facing new neighbors; this is the progression.
B2
(4,12) New neighbors balance and swing.
End facing up or down, in a line of 4 with these same neighbors.
Regards,
Russell