Typically from lines: the In Roller, Judge, etc., and the person next to him, do
their part of an In Roll Circulate, Here Comes the Judge, or whatever. They are
now ends. The others slide into the center without turning, and then Hinge.
\syhlines{b2n,g2n,g3n,b3n}
\syhdiamonds{b3s,b2e,g3s,g2w}
before Here Comes the Diamond
after
One can also do these calls to an hourglass or interlocked diamonds by doing
the standard (Snake/Slither) adjustment.