Grand Cross Roll

From a tidal line, the center 6 Trade and spread away from each other (as in Grand Mix), while the very ends Run. This is Grand Working as Centers Cross Roll, if that helps.

\sxhlines{g1s,b1s,b2n,g4s} \sxhlines{b2s,g1n,g2s,b1n}
1 3 1 3 2 4 4 2 2 4 1 3 2 4 1 3
before Grand Cross Roll after