Tests of mainstream calls 53-68.

sdr> /program = Program.MAINSTREAM
MAINSTREAM
sdr> heads lead left
| 4B>  1G<  3B>  2G<
| 
| 4G>  1B<  3G>  2B<
sdr> dixie style to a wave
| 1Gv  4B^  1Bv  4G^  2Gv  3B^  2Bv  3G^
sdr> spin the top
| 1B<  2B<
| 
| 4G>  3G>
| 
| 1G<  2G<
| 
| 4B>  3B>
sdr> spin chain thru
| 4G<  3G<
| 
| 2B>  3B>
| 
| 1B<  4B<
| 
| 1G>  2G>
sdr> tag the line face right
| 1B>  4B>
| 
| 1G>  2G>
| 
| 4G<  3G<
| 
| 2B<  3B<
sdr> half tag
| 4G^  1Bv  3G^  4Bv
| 
| 2B^  1Gv  3B^  2Gv
sdr> scoot back
| 1B^  4Gv  4B^  3Gv
| 
| 1G^  2Bv  2G^  3Bv
sdr> recycle
| 4Gv  1Bv
| 
| 3G^  4B^
| 
| 2Bv  1Gv
| 
| 3B^  2G^
sdr> left touch 1/4
| 3G<  4B<
| 
| 4G>  1B>
| 
| 3B<  2G<
| 
| 2B>  1G>
sdr> half tag
| 3B^  3Gv  2G^  4Bv
| 
| 2B^  4Gv  1G^  1Bv
sdr> centers trade while the ends circulate
| 2B^  2Gv  3G^  3Bv
| 
| 1B^  1Gv  4G^  4Bv
sdr> swing thru once and a half
| 3B^  2Gv  3G^  2Bv
| 
| 4B^  1Gv  4G^  1Bv
sdr> recycle
| 2Gv  3Bv
| 
| 2B^  3G^
| 
| 1Gv  4Bv
| 
| 1B^  4G^
sdr> square thru 3
| 3B^  2G^
| 
| 3Gv  2Bv
| 
| 4B^  1G^
| 
| 4Gv  1Bv
sdr> left allemande
| 3B<  2G>
| 
| 3G^  2B^
| 
| 4Bv  1Gv
| 
| 4G<  1B>
sdr> right and left grand
|      1BL       4GQ
| 
| 1G7                 4B`
| 
| 
| 
| 2BQ                 3GL
| 
|      2G`       3B7
sdr> promenade home
|      3Gv  3Bv
| 
| 4B>            2G<
| 
| 4G>            2B<
| 
|      1B^  1G^
sdr> /exit