Interference Patterns

Needs testing.

On 2nd chord, 3c & 4c cross to opposite sides (1,2,3x,4x)

1c+2c & 3c+4c set and rotate, 2W+3W & 1M+4M pass RSh in the centre on [3-4] and [7-8], end facing up/down on sides (2,1,4x,3x)
All ½ RSh Reels4 on the sides (3x,4x,1,2) ; 3c+4c & 1c+2c turn RH on sides, ending RH joined across ready for
3c+4c & 1c+2c RHA, 1c & 4c pass RSh to (3x,1,4x,2) ; 3c+1c & 4c+2c LHA, end facing up/down on sides
All ½ LSh Reels4 on the sides, 4c face 1c on sides (2,4x,1,3x) ; 4c & 1c ½ turn RH on sides | ½ RHA (2,4,1x,3x)
Longer instructions are at