A call that starts with the phrase "Swing Chain" is like the equivalent "Spin Chain"
call, except that all 3/4 Casts and Star Turns are changed to 1/4. Trades and
Star Turns of 1/2 are not affected.
\sxvlines{b1e,g1w,g2e,b2w}
\sxvlines{g1e,b2w,b3e,g2w}
before Swing Chain Thru
after
Other examples are Swing Chain the Line, Swing Chain the Star, Swing Chain the Gears,
Swing Chain and Circulate the Gears, and Swing Chain and Circulate In.