Preserve offset during breathing. sdr> /program=Program.A2 A2 sdr> heads lead right while the sides roll away | 4G> 3G< 1B> 2B< | | 4B> 3B< 1G> 2G< sdr> veer left | 4G> 1B> | | 4B> 1G> | | 3G< 2B< | | 3B< 2G< sdr> fan the top | 3B^ 4B^ 3Gv 4Gv 2G^ 1G^ 2Bv 1Bv sdr> as couples ends cross fold | 4Bv 3Bv | | 3Gv 4Gv 2G^ 1G^ | | 1B^ 2B^ sdr> star thru | 2G< 1G< | | 1B> 2B> 4B< 3B< | | 3G> 4G> sdr> /exit